Innermost Unexcelled Cycle of Heart Essence

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 of Dzogchen according to the arrangement of Shri Singha.

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Compare with:

• Innermost Unexcelled Cycle (yang gsang bla na med pa'i sde) consists of seventeen tantras. There are eighteen when adding the Ngagsung Tromay Tantra which is focused on the protective rites of Ekajati. According to the system of Padmakara, there are nineteen when including the Longsel Barwey Tantra, the Tantra of the Blazing Expanse of Luminosity.
• innermost unexcelled cycle of the Great Perfection (rdzogs pa chen po yang gsang bla na med pa'i skor).

• See also Nyingtig Yabshi (snying thig ya bzhi),
• Vima Nyingtig (bi ma snying thig).
• Heart Essence, Nyingtig, (snying thig).
• Innermost Essence (gsang ba snying thig)