0 - deep, dreamless sleep
1 - dreaming sleep (REM)
2 - hypnagogic (in-between) state
3 - waking awareness
4 - meditation
5 - the awakened mind of lucid awareness: meditation combined with conscious awareness
6 - creativity (the Evolved Mind) of unity and oneness
7 - illumination, self-remembering, psychedelia (super-psychic state)
8 - cosmic consciousness, or omniscience