The world was not created aimlessly but is full in amusements in delusion, only when you start to do good, then you see the further good in it but all of the good would be useless in the end, if you do not believe in Him.
It is said that mankind had not completed the favor of His.
How simple could it have been?
Except, that He would retain the good if you were to believe, and for those who would like to, He converts what He wills as many folds.
There is no fun in the world unless it is of that which is short-lived, invest in the hereafter, where everything lasts forever, not ever would you want to transfer from it.
Fun for everyone who has Heaven as an abode in the hereafter, what should you work for in the world?
The world we are yet to know.