Central idea of on his blindness by john Milton?

John milton's soonet 'On His Blindnes' presents his religious attitude.It contains the noble idea of firm faith in God. John Milton became blind at the age of fourty-four.Hence,he complains to God against the injustice done to him.Soon he realizes his mistake and the superamacy of God.He feels that God does not want any return for His gifts.The only service to God is to bear patiently all the misfortunes.Milton realizes that he should not complain against God because the way of God are just.