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.

Islam's history from the time of Prophet Muhammad (PBUH&HP) until now has witnessed many challenges that were overcome through the flexible and rational set of rules offered by Allah. The way Islam deals with the requirements of each era and how its principles and rules can be applied to new cases are among the reasons for the quick spread of Islam during ages, which are addressed in this part of the topic. 

Time and evolution in Islam's History

Islam is basically sensitive to the evolutions and the requirements of each epoch. This is not the case for many religions and sects, especially those founded by humans. Imam Ali (AS) has advised: “not to impose the customs and traditions of your time on your children because they belong to a different era from yours” [1].

Unlike other creatures of the world such as animals, plants and inanimate objects, humans have memory, tradition, and history; animals might have memory, but not tradition nor history. This makes it possible for humans to compare different periods of their life and form the concept of progression and retrogression; which is not the case for animals and plants.

And, that is the reason why the specifications and the requirements of each time become meaningful; e.g., old vs. new, classic vs. modern, etc. This makes one pause once in a while to ask him\herself: am I going forward or actually taking a step back? And undoubtedly, getting advanced would be the most pleasant reflection that one can have. But, how can one be on an ever progressive path? 

Life framework Should be Based on Wisdom

For self-development, one needs a set of values, disciplines, and rules with the help of which he\she can define a structure for his\her life that will consequently guarantee his/her success and advancement over time. This also applies to social development.

On the other hand, every human being is not able, nor has time, to contemplate every detail and strategy about life and to establish his\her framework. Hence, one usually relies on the teachings and instructions of a specific sect, religion or ideology. But, how is it possible? How can one select the best framework and then adjust it according to the specifications of each era such that it can apply to every period? That is possible with the help of wisdom. 

More Rational, Closer to human Wisdom and More Acceptable

Among various ideologies and religions known in the course of time, those who are more rational can be adapted better to the requirements of each period and are consequently more understandable and acceptable by humans. Such a religion or ideology provides the principles and rulings which can be perceived by the human’s wisdom and from which humans can conclude and extract the guidelines and codes that are exclusive to each era.  

Islam, a wisdom-based religion

Among different religions, Islam is really the only one that is rational and is based on wisdom; So are the divine guidelines. Every good act and deed ordered to is rationally and truely useful in nature, not because it is a divine order. And something known devilish in Islam is intrinsically wrong; it is not wrong because God has told us so. In other words, it is not Islam who renders something good or bad, it rather provides the rational tools to identify what is wrong and what is right. That is the reason why Islam is more compatible with the specifications of each time, i.e., it provides the axioms and frameworks and leaves the rest to the human’s wisdom. This takes place through a process called Ijtihad. 

Ijtihad and Rational Solutions to the New Cases

Using Ijtihad, Islamic jurists (Faqih) derive the guidelines and regulations from the principles of the Quran, the narrations, and traditions of Prophet Muhammad (PBUH&HP) and the Infallible Imams (AS). In this regard, Imam Sadiq (AS) said that the Infallible Imams had introduced the Islamic axioms and it is a duty over Muslims to deduce the details and rules [2].

This is the Islamic jurisprudence which is a unique characteristic that enables Islam to propose rational solutions, to respond to new issues and questions at each time. It also facilitates for human beings the application of the Islamic axioms to their activities and dealings. Otherwise, religion or ideology that is limited to the text, and has no solution to become updated in the course of time, will be a temporary time-dependent one that cannot survive through the time evolution. 

According to what has been mentioned above, Islam as a whole guide and roadmap is able to consider new situations, and issues raised at different periods and propose relevant solutions for them. Islam's history has shown it as a dynamic religion whose guidelines are not limited to the cases in a thousand years ago but meets the requirements of all time. Of course, it should be noted that being ever up to date does not mean to welcome every new change and circumstance; it rather means to derive the relevant Islamic orientation and ruling by considering the Islamic axioms.   

References:

1. Ibn Abi l-Hadid, “Comments on Nahj al Balaqa”, vol. 20, p. 267, T. 102.
2.  M. Al-Hili, "Al-Saraʼir Al-Hawi Li-Tahṛir Al-Fatawi", vol. 3, p. 575.