奥义书——吠陀传统的哲学核心，阐明梵、真我、知识、行动与解脱的本质。十部主要奥义书，另加精选的毗湿奴派小奥义书。
A detailed manual of yoga: elements, breaths, channels, postures, the count of breaths, and the signs of approaching death. By the end it turns out that all this work on the body leads to the contemplation of Vāsudeva in the heart.