Man is fickle when Ease comes to Him after Difficulty

Allah tells us that man never gets bored of asking his Lord for good things, such as wealth, physical health, etc., but if evil touches him -- i.e., trials and difficulties or poverty --

فَيَئُوسٌ قَنُوطٌ

Commentary

فَذُو دُعَاءٍ عَرِ‌يضٍ (he is full of broad prayers - 51.) The nature of an infidel is being stated here that when Allah Almighty bestows upon him the good things: wealth, honor and peace, the infidel gets so involved in them and so intoxicated with them that he becomes even more distant from the true Benefactor, Allah Almighty, and his pride and heedlessness increase even more. But when he faces some distress, then he starts long and lengthy supplications to Allah Almighty. Here the Qur'an has used the word ` broad' to describe their lengthy supplications, because what is wider will automatically be longer too. That is why, when describing the span of Paradise, Allah Almighty has used the word عَرْ‌ضُهَا السَّمَاوَاتُ وَالْأَرْ‌ضُ (a paradise the width of which spans the heavens and the earth - 3: 133)