Tögal

[4] Samding Dorje Phagmo Vimalamitra's Great Commentary, defines tögal as "the practice of the direct perception of pristine consciousness" which is for "the diligent who gradually attain buddhahood through meditation.

[8] These practices aim at generating a spontaneous flow of luminous, rainbow-colored images (such as thigles or circles of rainbow light) that gradually expand in extent and complexity.

According to Hatchell, these visionary yogic techniques: [...] are based on the idea that pure awareness is locked away in the body’s core, localized at the heart.

A set of luminous energy channels then run from the heart to the eyes, acting as pathways through which awareness can travel and exit the body.

This provides an opportunity for recognition: for the yogi to realize that the visionary appearances “out there” are none other than presencings of an internal awareness, and thus to undo the basic error of ignorance.