In this lecture, Campbell introduces the Perennial Philosophy of the East and focuses on the Indian tradition from its origins to the end of the Vedic period. The idea of spiritual emancipation presented in the Vedas and the Upanishads provides a basis for understanding Hinduism. Campbell explores Indian religious history and its rites of sacrifice in the Vedic period (1500 B.C. to 500 B.C.) of early Indus Valley civilization.