What is the most important necessity of religion? Besides all the moral principles that religion teaches and besides all the ethics that religion gives, there is a central theme which can be traced as the nature of life and spirit. And what is it? It is to make that perfect being intelligible to the limited mind of man. What is done for it? The ideal of God is preached. The prophets who brought religion from time to time made their central theme the ideal of God. Every one of them tried his best to make a picture of that ideal such that the people of that period when they lived could grasp it easily and benefit by it in order to fulfill the purpose of spiritual perfection.