"“For in its intrinsic awareness, the three Buddha-bodies are inseparable, and fully present as one.
Its emptiness and utter lack of inherit existence is the buddha-body of reality (Kether).
“The natural resonance and radiance of this emptiness is the buddha-body of perfect resource (Chokmah).
“And its unimpeded arising in any form whatsoever is the buddha-body of emanation (Binah).
“These three, fully present as one, are the very essence of awareness itself." —The Tibetan Book of the Dead
To perceive from the light of Kether within samadhi does not signify that we have reached complete perfection and enlightenment.
There are two forms of enlightenment: temporary and permanent.
Many accomplished Buddhists and yogis know how to reach Dharmakaya (Kether) in meditation, yet without dissolving the ego. This is temporary enlightenment.
Permanent liberation is achieved after annihilating the ego on the Second Mountain and after reaching the Absolute upon the Third Mountain.
When thoughts dissipate within Rigpa, this signifies a clarified, heightened, and awakened state. However, to be permanently established in Kether is a high work predicated upon the complete death of the ego and the full payment of one's karma.
One only permanently reaches Kether (Dharmakaya) upon the Third Mountain, and even then one must enter the Absolute, to dissolve as a drop within the ocean of Uncreated Light.