Human beings are created to be free and choose what to do with their own lives. However, sometimes the path toward growth is not through being free to have whatever we desire but to abstain from what we really wish while it is deviating or is a barrier against reaching the perfect version of ourselves. Here, the history of fasting finds its meaning. This is a ritual in which one, by his/her own free will, chooses to abstain from certain activities; this could range from not eating or drinking for a specific time, etc. Many faiths and religions, throughout history, encouraged their followers to fast in a certain way, each aiming at the spiritual elevation of their adherents. Islam is also among those religions which have made fasting an obligation upon its followers under certain circumstances, accepting the fact that this was not a tradition unique to Islam: 

"O you who have faith! Prescribed for you is fasting as it was prescribed for those who were before you, so that you may be Godwary." Quran (2:183)

In what follows, we will have a look at the practice and history of fasting in the five most prominent non-Abrahamic faiths. 

1. The History of Fasting in Primitive Religions

Looking at the history of fasting in primitive tribes and cults, we find some evidence regarding their belief in the spiritual impact of fasting and "was a practice to prepare persons, especially priests and priestesses, to approach the deities." Some Hellenistic cults believed fasting to be the prerequisite for reaching divine revelation for their priests. Some others thought that fasting "was one of the requirements for penance after an individual had confessed sins before a priest." [1]
Fasting was also common among Native Americans, practiced in private, or as a part of public ceremonies. The individual fasting often included the ones who had recently entered puberty, and they had to spend some time alone, from one to four days. During this time, they had to reach a particular spiritual maturity by observing certain rituals. Also, "It was not uncommon for an adult to fast, as a prayer for success when about to enter upon an important enterprise, as war or hunting" [2]. Moreover, fasting was considered a requirement for religious heads to be able to fulfill their duties. The public fasting happened as a part of the initiation into religious societies, the length of which "ranged from midnight to sunset, or continued for four days and nights." The fast of these ancient tribes often included abstinence from food and water. The Native Americans saw fasting as "a means to spiritualize human nature and quicken the spiritual vision by abstinence from earthly food… as a method by which to remove "the smell" of the common world." [2]

Ancient Egyptians and Babylonians also practiced abstinence from food and drink as "a form of penance that accompanied other expressions of sorrow for wrongdoing. Like people of later times, these nations viewed fasting as meritorious in atoning for faults and sins and thus turning away the wrath of the gods." [3]

2. Fasting in Hinduism 

The Hindu faith also includes some form of fasting, which is ultimately aimed at spiritual awareness and growth by forming a balanced relationship between the body and the soul. Hindus believe that fasting can be a means of concentration on spiritual attainment through abstaining from worldly indulgences and distractions. Another purpose of fasting in Hinduism is self-discipline, which is made possible through "training of the mind and the body to endure and harden up against all hardships, to persevere under difficulties and not give up. According to Hindu philosophy, food means gratification of the senses, and to starve the senses is to elevate them to contemplation." [4] 

Hindus have specified certain days for fastings, such as Purnima (full moon) and Ekadasi (the 11th day of the fortnight). Moreover, depending on the god or goddess each individual worships, certain days of the week are dedicated to fasting. They also fast on special feasts and festivals, including "Durga Puja," "Navaratri, Shivratri, and Karwa Chauth. Navaratri is a festival when people fast for nine days." [4] It is noteworthy that some kinds of fasting in Hinduism are only obligatory for women.  

3. Fasting in Buddhism

The practice of fasting in Buddhism is seemingly limited to monks and religious leaders. It is said that the Buddha had undergone long periods of fasting during the time he was learning from other teachers as a kind of self-mortification. While there is no record for Buddha's fasting after this time or his recommendation for fasting to his followers, many Buddhist monks tend to fast on certain occasions as a way of self-purification and spiritual elevation. They would eat only one meal a day and would fast on the days of the new and full moon. 

As a part of Buddha's concept of moderation and avoiding excessive manners, intermittent or prolonged fastings are not encouraged in this faith. However, fasting for a reasonable amount of time and refraining from excessive eating is considered a useful way of preserving health in Buddhism. [5] In general, fasting in Buddhism is limited to refraining from eating solid food, such as meat.  

4. Fasting in Daoism

Daoist's concept of fasting is more about mind rather than the body. Therefore, they encourage a form of "fasting of the heart" (xinzhai), which will result in a more pious life [3]. However, they also believe that the fasting of the body will ultimately result in a clean body and a pure soul. In the book of Mencius, one of the famous Chinese scriptures, fasting is considered as a means of self-purification even for the one who has darkened his/her soul by vices:
"But although a person is ugly, it is possible, through fasting and purification, to become fit to perform sacrifices to the Lord-on-High" [6] 

In this tradition, one must avoid doing any evil deed and keep away from harmful hobbies and desires. The followers of this tradition try to read more of their religious scriptures as they fast to connect more to that Higher being and find peace [7]. 

Zhang Yuchu wrote in the Ten Daoist Commandments: "Anyone cultivating Dao must fast for a clean body as well as a pure heart, and he must visualize the spirits and read Daoist scriptures silently in his mind. It is as if facing the Higher Emperor, communicating with him with the heart." [7]

5. Fasting in Zoroastrianism

It seems that most Zoroastrians implicitly reject the practice of bodily fasting, which in their view would weaken the body and prevents one from appropriately attending his/her spiritual duties and satisfying physical needs [8]. The only form of fasting which they find permissible "is that of abstaining from sin" [9]. There is also a reference to this prohibition in Avesta, the religious Zoroastrian text:

"It is requisite to abstain from the keeping of fasts. 2. For, in our religion, it is not proper that they should not eat every day or anything, because it would be a sin not to do so. 3. With us, the keeping of fast is this, that we keep fast from committing sin with our eyes and tongue and ears and hands and feet. 4. Some people are striving about it, so that they may not eat anything all day, and they practice abstinence from eating anything. 5. For us it is also necessary to make an effort, so that we may not think, or speak, or commit any sin; and it is necessary that no bad action should proceed from our hands, or tongue, or ears, or feet, which would be a sin owing to them. 6. Since I have spoken in this manner, and have brought forward the fasting of the seven members of the body, that which, in other religions, is fasting owing to not eating is, in our religion, fasting owing to not committing sin." [10]

However, there is a tradition of fasting in this religion at the time of mourning for a departed soul, which is only limited to not eating meat. As the Avesta suggest:

"In every habitation where anyone departs, passing away from the world, it is necessary to endeavor that they may not eat and not consecrate fresh meat for three days therein. 2. Because the danger is that someone else may depart, passing away; so the relations of that former person should not eat meat for three days." [10]

So far, we have reviewed the history of fasting in five well-known non-Abrahamic faiths, which reveals the spiritual roots of this practice from the beginning of the time. In the next article, we will study the ritual and history of fasting in three Abrahamic religions; that is Judaism, Christianity, and Islam. 

References:

1. fasting
2. native american fasting
3. fasting
4. Das, Subhamoy. "Religious Fasting in Hinduism." Learn Religions, Feb. 11, 2020, learnreligions.com/why-fast-in-hinduism-1770050.
5. Buddhism
6. Mencius, translated by Irene Bloom, Colombia University Press, New York. Book 4B, part 25.
7. Fasting
8. fasting
9.  M. N. Dhalla, Zoroastrian Civilization from the Earliest Times to the Downfall of the Last Zoroastrian Empire 651 A.D., New York, 1922. P.187.
10.  Sad Dar, Translated by E. W. West, from Sacred Books of the East, volume 24, Clarendon Press, 1885. Chapters 78th and 83rd.

One of the main differences between Islamic and non-Islamic lifestyle is manifested in the eating habits. Not eating pork and not drinking wine are two of these practices which are indeed evident in the life of a Muslim.  This article will briefly analyze some of the reasons why Muslims do not consume pork.  

However, it is important to keep in mind that the central philosophy behind all religious rules including Islamic rules and regulations is only known by the All-Wise and All-Knowing God who is the Creator of the whole universe and all the creatures.

Religious Reasons:

Pork is forbidden in different Divine religions. For instance, the Bible says about pork: "And the swine ...  he is unclean to you. Of the flesh shall ye not eat, and their carcass shall ye not touch; they are unclean to you." (Leviticus, 11:7-8). The same command is repeated in Deuteronomy, 14:8.

Christians often depict Satan in religious anecdotes in the form of a pig. The Gospel of Barnabas mentions that Pig is Satan personified and that the pig’s body has the spirit of Satan. The present Bible among the Christians (Matthew 8-32 Marks 5-13, Luke 8: 28-39) describes how Jesus thrust the soul of Satan inside the herd of swine and sent them towards the river [1].

In Islam, there are two primary sources for understanding the orders of Allah: the Quran and the Sunnah [2].  Both the Holy Quran and Sunnah have equal status as far as the obligatory orders (wajibat) are concerned. If one wajib is mentioned in Sunnah only, it has the same weight as one said in the holy Quran only [3] and vice versa.  Both sources mention that eating pork is forbidden.

Allah has announced that eating pork is forbidden in several verses of the Holy Quran:

“You are prohibited carrion, blood, the flesh of swine …” (5:3).

The unclean nature of swine flesh is stated in the following verse:

“Say, ‘I do not find in what has been revealed to me that anyone be forbidden to eat anything except carrion or spilled blood, or the flesh of swine —for that is indeed unclean— or an impiety offered to other than Allah.’ …” (6:145)

The same concept is declared in the verses (2:173) and (16:115).

Imam Reza (AS) mentions regarding the prohibition of pork, “The Almighty Allah has prohibited (made Haram) Pork because it is a horrible and dreadful animal that Allah has created for men to derive lessons from. People should also refrain from sensuality and shameless deeds that cause such a terrible appearance. And that they fear from being transformed into pigs by Almighty Allah. (In the description of past nations it is mentioned that people who committed sexual promiscuity are changed into pigs in the Intermediate world (Barzakh) [i], and they shall be raised as pigs in the Judgment Day (Qiyamat)).

Also, pigs were allowed to exist so that they are a reminder of the metamorphosis (Maskh) [ii] of previous nations into pigs. The second reason for prohibiting pork is that the staple diet of pigs consists of extremely impure (Najis) and filthy things, and its blood contains innumerable harmful germs.” [4]

Imam Sadiq (AS) said,“The Almighty Allah metamorphosed many nations into animals. Among them are pigs, monkeys, and bears, etc. After this these animals were prohibited from being eaten so that people derive lessons from them and do not consider the sin minor.”[5]

Pork is very harmful to the body but we mention below only some of its harmful effects.

Scientific Reasons:

The present-day science of parasitology has proven some serious diseases in human beings caused by the bacteria and germs found in pork.  Pork is the main carrier of many germs and parasites such as Faciolopsis buski, Paragonimus, Clonorchis sinesis, Erysipelothrix rhusiophathiae [6]. Moreover, Dr. Joseph Mercola has cited the following diseases caused by pork: Porcine Reproductive and Respiratory Syndrome (PRRS), the Nipah Virus, Porcine Endogenous Retrovirus (PERV) and Menangle Virus [7].

On the whole, the pig is the cause of many serious and fatal diseases, among them, dysentery, trichinosis, tapeworm, roundworm, hookworm, jaundice, pneumonia, suffocation, intestinal obstruction, acute pancreatitis, enlargement of liver, diarrhea, emaciation, stone formation in liver, cancer, anemia, high fever, hindrance of growth development in children, typhoid, lameness, heart trouble, abortion, sterility, and sudden death [8].

It is important to note that despite hard efforts in medical science, many of the pig parasites cannot be eliminated by antibiotics, drugs or vaccines.

Some people assert that by present day means it is possible to eliminate all these parasites and make pork devoid of them, but even upon the supposition that use of sanitary equipment or cooking of meat at high temperatures eliminates all the parasites, nevertheless the harms associated with pork cannot be denied for according to the incontrovertible law, the meat of every animal bears the traits of that animal and, by means of the glands and the hormones secreted by them, influences the conduct of those who consume it.

Thus, consuming pork may transfer the attributes of sexual depravity and indifference towards the affairs of the womenfolk of the family - the most blatant traits of the male members of this species - into the person who consumes it.  And perhaps, one of the reasons for the excessive sexual profligacy dominant in the West could be consumption of the meat of this sordid animal [9].

So since the scope of science and the knowledge of human beings are limited, there might be other harms still undiscovered. However, even if human beings find some way of eliminating all the physical and spiritual harms of something, it does not mean that the forbidden (Haram) law of God becomes permissible (Halal). As mentioned at the beginning of the article, we must submit to the will of God as the Creator of the whole world and the Only One who truly knows about what is good and bad for the creatures and why.

Notes:

[i] The stage between this world and the hereafter

[ii] In Arabic, Maskh means for something to change form to an uglier one. In the Quran and Islamic tradition, this term refers to a specific divine punishment which was sent upon the wrongdoers and wrongdoing nations in the past (of course not all wrongdoers, but those who committed certain wrong acts) which can be called metamorphosis. For more information, please refer to http://www.islamquest.net/en/archive/question/fa614

References:

1. eating in Islam
2. Sunnah means the sayings, actions and silent approval of the Holy Prophet and the Holy Imams (PBUT).
3. islamic laws
4. Uyun al-Akhbar ar-Riďa & Wasa’il al-Shia, ch.1 
5. food in Islam
6. eating pork in Islam
7. all about pork meat