The Root Volumes of Longchen Nyingthig Great Completion contains specific texts for the various topics that need to be covered during the transmission of the teaching. One of them is a text by Jigmey Lingpa that gives a complete set of instructions on Development Stage practice,that is, the practice of visualizing a deity. The text, which is one of the core texts of the Longchen Nyingthig transmission of Great Completion, provides an extensive level of instruction in deity practice using a ground, path, and fruition presentation of the subject. The instruction is based on the root tantra of Mahayoga, the Core of the Secret (in Sanskrit, Guhyagarbha), in Tibetan gsang ba snying po.
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