In general identical with the Instruction Section (man ngag sde), the third of three division of Dzogchen. In particular it refers to the Innermost Unexcelled Cycle of Heart Essence (yang gsang bla na med pa'i snying thig gi skor), the fourth of the four divisions of the Instruction Section according to the arrangement of Shri Singha. All lineages of the Innermost Essence passed through Shri Singha and continued in Tibet through his personal disciples, Padmasambhava and Vimalamitra. In the 14th century these two lineages passed through Rangjung Dorje, the third Karmapa, and his close Dharma friend Longchen Rabjam (1308-1363), the latter of which systematized these teachings in his great body of writings. The Nyingthig teachings have also appeared through many other lines of transmission; for instance, each major terton reveals an independent cycle of Dzogchen instructions. The practice of the innermost Heart Essence is continued to this very day. [RY]
The Dzogchen teachings were revealed to Prahevajra (Tib. Garab Dorje) by Vajrasattva, and passed down through an unbroken lineage to present day masters. Within the Dzogchen teachings, there are three categories of teachings suitable to students of different capacity. The Nyingtik is the innermost secret unsurpassed cycle of teachings (Wyl. yang gsang bla na med pa'i skor) of the Category of Pith Instructions; this cycle is the most direct approach for students of the highest capacity.
- The instructional teachings are elucidated and condensed in two major traditions of Nyingtik.
Tulku Thondup continues:
- In addition to the original tantras of Nyingtik, the innermost esoteric teachings of Mengakdé translated into Tibetan, many other Nyingtik teachings were brought to Tibet mainly through Vimalamitra and Guru Rinpoche (and also Vairotsana). Some were transmitted in pure visions to great realized masters by siddhas who lived centuries before them. Some were discovered by masters in their state of realization of primordial wisdom. Some were revealed by masters as ters, which had been transmitted to them in their past lives by enlightened masters and awakened in this life to be revealed by others.