The book is about the philosophy of Jean-Paul Sartre, who is the author of the famous existential dictum that "Existence precedes Essence". He explains a man ontologically as enclosed subjectivity, who finds himself alone in the world as he is not able to understand other subjectivities and is surrounded by objects. With an open and blank future, he realizes his absolute freedom and tries to explore his possibilities in relation to an outer alien world. With limitations of capabilities, the man goes on to become the centre of this universe and the strongest individual. This man aspires to become God. In this way, every man aspires to become a god in the form of completeness. In the world of subjectivities where earth becomes full of gods; in the material realization of possibilities, man's aspirations face scarcity, terror and objectification of subjectivity. Sartre is an atheist philosopher in the sense that man alone decides about his life as God never turns up on the scene, thus the philosopher says that Man is condemned to be free.