What is the importance of Hinduism in the book, Thou Art That?

Hinduism is a faith that transcends all social rules, while being classified as an "ethnic" religion for lack of a formal creed. When a yogi goes into the forest, he leaves behind his caste. Rituals emphasize that he is going past society. Hinduism appeals to young Westerners by comparing the importance of the past and the present. A devout young Hindi, who Joseph Campbell meets, studies the Bible but can find nothing religious in a history of relationships. The book contains several stories to show common mythologies with other religions, like Vyasha's virgin birth and the original creation by word alone.