In his well-known book, Al-Hikam (Words of Wisdom), sheikh Ahmad Ibn `Ataa’illah As-Sakandari says:
The best way to ask Him is through expressing your distress, and the fastest way to acquire His gifts is through expressing your humility and need.
The word of wisdom under discussion is about du`aa’ (supplication).
It is not about the etiquette of supplication, but it is about the condition of the heart during supplication.
Allah asks the disbelievers about their own experiences:
Who is it that responds to the distressed when he calls out to Him, and who removes the ill, and has made you inherit the earth? Could there be any divine power besides Allah?
(An-Naml 27: 62)
In this verse Allah makes it clear to the disbelievers that when they were in distress and sincerely asked Allah for help, He answered them.
If this is the case with disbelievers in distress, what about if a believer is in distress and asks His Lord for help!
Therefore, distress gets the supplication answered quickly.
Credit : Official Website of Dr. Jasser Auda