secret oral teachings in Tibetan Buddhist sects

"This is an account of the Madhyamika (Middle Way) school of Buddhism, a method of mediation and enlightenment that was developed by the great Indian teacher Nagarjuna. In a collaboration between the Frenchwoman Alexandra David-Neel and her friend, the Tibetan lama Aphur Yongden, these teaching are presented clearly and elegantly, intended for the layman who seeks a way to practice and experience the realization of oneness with all existence."--BOOK JACKET.