The most miserable man in the world of those meant for Paradise will be dipped once in Paradise. Then he will be asked, "Son of Adam, did you ever face any misery? Did you ever experience any hardship?" So he will say, "No, by God, O Lord! I never faced any misery, and I never experienced any hardship."
MuhammadReligion is very easy and whoever overburdens himself in his religion will not be able to continue in that way. So you should not be extremists, but try to be near to perfection and receive the good tidings that you will be rewarded; and gain strength by worshipping in the mornings, the nights.
Muhammad