Fatigue And Pain

Why is it in the case of human beings in particular that movement and activity create fatigue in them and they avoid fine industries just because his needs like clothing etc., require more exertion? If man did not suffer hardness and pain, how could he have evaded evil deeds, prostrated before Allah (swt) or sympathised with the people?
Don’t you see that no sooner a man is inflicted with pain, than he turns in perfect humility towards Allah (s.w.t.), supplicating for restoration of his health before his Creator and opens his hands in munificence? If man had felt no pain in being beaten, how could the governments have reformed the recusants? How could have children been taught sciences and arts? how could the slaves have been made to submit to their masters willingly?
Is there no admonition in all this for Ibn Abi Al Auja and his companions who deny Purpose, and the followers of Mani who deny the ingenuity underlying labour and pain?
Supposing only males or only females had been created in living beings, would not their species have become extinct? It is thus to preserve their species, that a mixture of males and females is brought into being in the right proportion.
Why is it that when men and women reach puberty, the man alone grows a beard? Is it not in accordance with set Design? This is because the man is created as the lord and the woman as house keeper. The woman is the supervisor of man’s interests and his sweetheart. Man, as such, is bestowed with a beard to give him prestige and honourable lordly appearance. The woman is allowed beauty and freshness instead as attractions for union.
Don’t you see the flawless merits that this creation acquires by the Design of the Almighty Allah? Everything is according to a definite measure. Nothing is given which is not needed.”

It was now afternoon, my master rose for prayers telling me to come to him the next day, God willing. Overjoyed with the information received, I returned with a grateful heart for Allah (swt) for the boon bestowed on me. I had a very pleasant night due to the valuable instructions bestowed on me by my master. ¹

References:

1. Tradition of mufaddal, dictated by Imam Ja’far al-Sadiq to Mufaddal (Mufadhal) ibn `Umar[↩]

[Quran Chapter 30:5-6] 5. In Allah's support. He supports whomever He wills. He is the Almighty, the Merciful. 6. The promise of Allah—Allah never breaks His promise, but most people do not know.