The fifth plane of the mind is at the throat. When the mind reaches this, the aspirant becomes free form all ignorance and illusion...
The sixth plane is at the forehead. When the mind dwells there, the aspirant sees the form of God day and night. But even then a little trace of ego remains.
In the top of the head is the seventh plane. When the mind rises there, one goes into samadhi. (Paraphrased: Then there is the direct perception of
Brahman.)... Generally the body does not remain alive after the attainment of samadhi... After the well is dug one generally throws away the spade and basket. But some keep them in order to help their neighbours. The great souls who retain their bodies after samadhi feel compassion for the suffering of others. They are not so selfish as to be satisfied with their own illumination
(pp. 213-214)