The Upanishads are some of the sacred books of the Hindu people. The Upanishads are part of a large collection of sacred books of Hindu people, called the Vedas. They are placed at the end of the Vedas and they primarily deal with knowledge or wisdom. Because they deal with knowledge portion of the Vedas, they are called Jnana-Kanda (Jnana means knowledge). Also because they come at the end portion of the Vedas they are often called texts of "Vedanta" ("veda": of vedas, "anta": at the end). Upanishads form the foundation of the philosophy of Hindu religion. 