Crown aperture
Upper terminus of uma
The crown aperture (usnisa-kamala) at the vertex — upper terminus of uma in Tsongkhapa's presentation, and the egress point of the subtle mind-and-wind at the time of death in the transference (phowa) practices built on this channel map.
Point 8 of 17 in Tibetan Tsa Lung — Three Channels
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Tsongkhapa, A Book of Three Inspirations (primary_canonical)
In the description of the central channel’s upper course and the transference (’pho ba) practices, Tsongkhapa identifies the crown aperture as the channel’s upper terminus. The crown coordinate represents that tantric aperture in the subtle-body map.