'Gos Lotsawa Khug pa lhas btsas originated a transmission in Tibet, as did Marpa Lotsawa. The Sakya tradition received both transmissions. Tsongkhapa, founder of the Gelug tradition, considered the Esoteric Community to be the most important of the tantras and used the Ārya tradition as a template for interpreting all the other tantric traditions.
This phase is roughly analogous to the physical isolation (kāyaviveka, Tib. lus bden) phase of Guhyasamāja tantra.
Tantra | tantra | Yogini Tantra | Mahavairocana Tantra | Guhyasamāja tantra |