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。
"The Little Knife" — a book about one exercise: attention, like a blade, cuts through what binds the soul to the body. It is called restraint, and what it cuts, in the end, is not the sinews, but desire.