Every doctrine and every philosophy of life is indispensably based on a sort of belief, an evaluation of life and a sort of interpretation and analysis of the world. The way of thinking of a school in respect of life and the world is considered to be the basis of the entire thinking of that school. This basis is called the world conception of that school. All religions, social systems, schools of thought and social philosophies are based on a particular world conception. All the goals which a school presents, the ways and methods which it brings into existence are the corollaries of the conception of the world that it entertains. The philosophers say that there are two kinds of wisdom: practical and theoretical. Theoretical wisdom is to know the existing things as they are. Practical wisdom is to find out how one should lead his life. This 'should' is the logical result of 'how they are', especially those 'how they are, with which metaphysical philosophy deals. Conception of the World and Perception of the World Evidently we should not confuse the conception of the world with its sense perception. Conception of the world has the sense of cosmogony and is linked with the question of identification. Unlike sense perception, which is common to man and other living beings, identification is peculiar to man, and hence conception of the world is also peculiar to him. It depends on his thinking and understanding.