You have introduced Yourself to me and after identifying You...
You have introduced Yourself to me and after identifying You I became detached with Your entire creation.
By Your Splendour and Majesty I swear that in order to earn Your pleasure if I have to be slaughtered seventy times with extreme suffering and torture, even then Your consent would have been the most dearest and desirable thing for me.' At this point Allah would speak to him: 'I swear with My Splendour and Majesty that from now on there will never be any veil between Me and you, that you may see Me whenever you desire so; that is the way I treat my friends.' “ The above-mentioned narration clearly explains the merit and wisdom of hunger, and on this basis the learned scholars of moral ethics have described numerous advantages for hunger, some of them will be mentioned here as follows: One of the effect of less eating is purity of heart and insight, because, over-eating and fullness creates a state similar to drunkenness within a human being which slows down his sense of perception, reducing his power of quick grasping, thus, ultimately resulting in his heart's blindness.
Opposite to that, hunger results in the mind becoming sharp, bestows comprehension upon conscience, thus, making the heart readied for enlightenment.
In this regard the following tradition has been narrated from the Holy Prophet [s]: “Whoever keeps his stomach hungry his thinking culminates to the highest level, thus, making his reflections stronger.” The other effects of less eating are humility, hospitality, self-breaking, earthiness, and freedom from arrogance, egotism, and haughtiness, because these are the by-products of transgression, rebellion, and ill-servitude towards Allah (the Glorious, the Exalted).
The one who frees himself from these calamities through hunger will also make himself readied for humility, obedience, and surrender before the Lord. The other effects of less eating are lowering of intensity of sensual passions and other such motivations which invite a human being towards sinning and other deviations.
As we know in most of the cases sins and transgressions are committed as a result of passionate talks and other sensual motivations, therefore, controlling these passions through hunger might free us from getting entrapped into many dangerous situations. Another effect of less eating is less sleeping, we know that oversleeping is one of the most important factor of wasting of our age which is the precious sum at our disposal for our hereafter's affairs.