In Dzogchen, the eleven vajra topics explain the view of the secret instruction series. These can be found in the String of Pearls Tantra, the Great Commentary by Vimalamitra as well as in Longchenpa's Treasury of Word and Meaning. The String of Pearls Tantra briefly lists them as follows:Although reality is inconceivable, pristine consciousness has three aspects. Though there are many bases of delusion, it is natural perfection and compassion. Abiding within oneself are the kāyas, families, and pristine consciousnesses. The location of buddhamind is in the center of the heart. The path is the four nāḍīs; vāyu causes movement. There are four gates of arising: the eyes and so on. The field is the sky free of clouds. The practice is trekchö and thögal. The gauge is the yoga of four confidences. The bardo is the meeting of the mother and child. The stage of liberation comes first.
Dzogchen or "Great Perfection", Sanskrit: अतियोग, is a tradition of teachings in Tibetan Buddhism aimed at discovering and continuing in the natural primordial state of being.
Dzogchen developed in the Tibetan Empire period and the Era of Fragmentation (9th-11th centuries) and continues to be practiced today both in Tibet and around the world.
It is a central teaching of the Nyingma school of Tibetan Buddhism and of Bon. In these traditions, Dzogchen is the highest .
In Tibetan Buddhist scholasticism, Buddhist philosophy is traditionally propounded according to a hierarchical classification of four classical Indian philosophical schools, known as the "four tenets" (drubta shyi).
While the classical tenets-system is limited to four tenets (Vaibhāṣika, Sautrāntika, Yogācāra, and Madhyamaka), there are further sub-classifications within these different tenets.
This classification does not include Theravada, the only surviving of the 18 classical schools of Buddhism.
It also does not include other Indian Buddhist schools, such as .