Life on earth is the real testing time for man. He is endowed with two powers for facing the real test of him. He has the POWER OF JUDGEMENT and a MORAL STAMINA. If he uses these two faculties properly, he will be successful in the test, otherwise he would fail. 

Man's test lies in showing whether he accepts reality even though he cannot perceive it directly through his senses; and whether, after having accepted it, he has the required moral stamina to obey God even though he is endowed with the capacity to disobey Him. In sending the Prophets, in revealing the Scriptures, indeed, even in performing miracles, God has always taken care to leave scope for testing man's power of judgement and his moral stamina. He has never disclosed reality to such a degree that man would be inevitably compelled to accept it. For if that were done, nothing would remain to be tested and the very idea of man's success or failure would be meaningless.