One of the significant aspects of responsibility in Islam is the responsibility towards ourselves and how we treat our bodies and souls. As discussed previously, every Muslim is responsible towards himself.

Since human beings owe their existence to their unique Creature, they should treat themselves as their Creator has commanded. The spiritual responsibilities of a human towards him\herself and some of the duties that one has towards his\her body were discussed in the previous part of this topic. Here, we continue the discussion on the rights of the parts of the body.

The Rights of the Eyes as Your Responsibility in Islam towards Yourself

The eyes are the means of insight and awakening of the heart. Imam Ali (AS) said that a faithful person looks to learn, but a hypocrite looks to amuse [1]. Thus, of the rights of the eyes and one's responsibility in Islam towards them is to lower the gaze from whatever that is unlawful (Haram) and not to look at everything and everywhere around, unless there is a lesson or advice behind [2]. According to Imam Ali (AS), whoever closes the eyes from Haram, his\her heart will be relieved [3].

The Rights of the Legs

The legs are the means to walk towards the right path and to overtake others in doing good deeds. Hence, of the rights of the legs over one and the responsibility in Islam towards them are not going towards what is unlawful (Haram) or what humiliates him\herself [2].

The Rights of the Hands

Of the rights of the hands are not to do what is unlawful (Haram) with them, otherwise one will be punished in the Hereafter for what has committed by his\her hands, and will be blamed by others in this world; not to prevent the hands from doing what God has commanded to; and, to allow the hands to seek what is beneficial and useful for one [2].

The Rights of the Stomach

Of the rights of the stomach are [2]:

To be careful about what you eat (80:24);
Not to eat what is unlawful (Haram), neither a little of it nor too much; 
Not to consider the stomach as a container and not to overeat while ignoring others who suffer from hunger; “eat and drink, but do not waste” (7:31);
To eat moderately even when eating lawful (Halal) foods because eating less is the key to good health [4]; 
Not to forget that overeating makes one bored and lazy and stops him\her from doing good deeds. According to Imam Ali (AS), to eat less enlightens the mind [5];
To remember that drinking too much will also cause indiscretion and absurdity; 

The Rights of the Private Parts

Of the rights of the private parts are to protect them from what is unlawful (Haram). To do so, one requires lowering the gaze since the eyes affect the heart and mind greatly. Also, one should frequently remember the death and the afterlife. He\she should always have a fear of the divine punishment and ask God to help him\her to protect his\her private parts from sins [2]. 

The Physical Rights of the Body as the Responsibility in Islam towards Oneself

Every human being is composed of a body and a soul. These two, together, help one to live a natural life. The health of the body is as important as the health of the soul. Devoting everything in life to prepare for the afterlife and depriving oneself of the God’s blessings in this world is blamed in Islam. In Surah Qasas verses 77, Muslims are advised to apply the capabilities and wealth that they have been given to do good deeds and to gain rewards for the afterlife.

But, they should also consider and benefit from the blessings of this world (28:77). Indeed, it is possible to consider both the physical needs as well as spiritual ones simultaneously. Although fulfilling the physical needs is known to be important in Islam, one should keep a balance in life and avoid being luxury-oriented. Otherwise, he\she will always be busy to increase his\her wealth, and this might force him\her to unlawful (Haram) ways of raising money.  

References:

1. S. al-Harrani “Tuhaf al-Uqul”, p. 212.
2. Imam Sajjad (AS), Treatise On Rights (Risalat al-Huquq).
3. “Ghurar Al-Hikam Wa Durar Al-Kalim”, T. 9122.
4. S. al-Harrani “Tuhaf al-Uqul”, p. 172.
5. “Ghurar Al-Hikam Wa Durar Al-Kalim”, T. 8462.
6. M. B. Majlesi, “Bihar al-Anwar”, vol. 78, p. 321.    

Does the Quran have any direct verses about books? Can the Quran guide us on what kinds of books to read? How can a book that was revealed about 1400 years ago tell us about which book genres are useful and which are not? 
In this text, we will study the status of reading books in the Quran and in Islamic teachings.
The first thing about books is the fact that the Quran, the miracle of Prophet Muhammad (PBUH&HP) is a book. Therefore, there is no doubt that there are no problems with reading books in Islam. But, the question that if there is any limitations in reading different types of books is considerable. 

Pointing out about books in the Quran

The word book has been used a lot in the Quran and has been used for three different meanings. Yet, all of them are used for a thing that records concepts and meanings and transfers them to the audience. In all different meanings of the book, it has been mentioned as a medium. The three different types of books mentioned in the Quran are as follows: 

1-    The books that contain religious rules and laws. [1]
2-    The books that record the deeds and actions of people. [2]
3-    The book in which all the events and details of this universe have been written and is kept by Allah. [3]

Writing books

Writing books is also an important point in the eyes of the Quran, as books are crucial means of conveying messages and transferring history to the next generations. They are also great means of spreading knowledge, wisdom, science, etc. the status of books and writing are so high in the eyes of Allah (SWT) that there is a chapter in the Quran called “Pen” (Qalam) in which Allah (SWT) swears by pens and what is written by it. [4] 
However, it is also very important that the written content should be useful, based on truth, and produced for the growth and improvement of human beings: 
“So woe to them who write the Book with their hands and then say, ‘This is from Allah,’ that they may sell it for a paltry gain. So woe to them for what their hands have written, and woe to them for what they earn!” (2: 79)

This can be a very important lesson and point to all of those who use their writing talent and produce written material for their audience. The above verse shows how enormous the effect of written products are on the readers.  

What does the Quran say about reading books?

Reading is also a very important point that is mentioned in the Quran. The most unique verse of the Quran that shows the importance of reading is, according to some Islamic scholars, the first verse of the Quran that was revealed to Prophet Muhammad (PBUH&HP): 
“Read in the Name of your Lord who created; Created man from a clinging mass. Read, and your Lord is the most generous, who taught by the pen, taught man what he did not know.” (96: 1-5)

The above few verses show how learning knowledge and wisdom is connected to writing and reading. It is by writing that human beings transfer their thoughts and learnings to others, and it is by reading those writings that people learn from others. It is by reading that people think, contemplate, and come up with new ideas which lead to more learning, wisdom, discovery and inventions. Therefore, Allah compares those who seek knowledge and those who do not and asks us: 
“… Say, ‘Are those who know equal to those who do not know?’ Only those who possess intellect take admonition.” (39:9) 

Which books to read?

Despite the importance of gaining knowledge through reading in Islam [i], still we might ask if all the books available in the market are useful, worth reading and lawful (Halal) to read in Islam. 

The point is that the Quran does not mention all different book genres and does not discuss each genre in detail. But, it provides specific frameworks that work as a type of criterion. Knowing the criterion helps us to distinguish which books are useful for us and which ones can harm our soul and spirituality. 
For example, the Quran is not against stories or novels since the Quran itself is full of amazing stories, some of which are examples or stories [5]. Allah (SWT) claims that He is the best storyteller when He says: 

“We will recount to you the best of narratives in what We have revealed to you of this Quran, and indeed prior to it you were among those who are unaware [of it].” (12: 3)

Reading such books will result in many positive effects on our mind and soul. As Imam Ali (AS) says, “The greatest peace is obtained by reading books”[6]. Also, at the times of difficulties and hardships, sometimes one finds no remedy other than taking refuge in books, perhaps to find a way out; As Imam Sadiq (AS) puts, “There will be chaotic days when people would not find peace unless within their books” [7]. 

However, this does not mean that reading all types of storybooks, novels or myths are useful. Allah mentions in the Quran that real believers are those who “avoid vain talk” (23: 3). Therefore, books in which we can find parts that would waste our time or those that contain stories, chapters, or lines that may harm human soul and spirituality are not recommended to read. Apart from the books that may harm our soul, reading and learning can be considered as a sign of a Muslim. 

Notes:
[i] “Seeking knowledge is an obligation upon Muslims.” Prophet Muhammad (PBUH&HP) [8]. 

References: 

1. The Quran (38:29)
2. The Quran (45:29)
3.  The Quran (10:61)
4. The Quran (68:1)
5. The Quran (39:27)
6. Ghurar al-Hikam wa Durar al-Kalim, Hadith no.8126.
7.  Muhammad ibn Ya'qub al-Kulayni, al-Kafi, vol.1, p.52.
8.  ibid, p.83.