By the lack of the sense of Ego, various creative minds are born within that person.
There exists only one higher mind (eka chitta) above all the differences in activities of the individual minds.
Out of all minds, the real one born out of meditation is free from impressions.
True knowledge is accomplished in the higher mind by resting in one's own nature and not passing from one impression to another one.
Liberation is that state in which the attributes/ qualities of nature (gunas) are absorbed in their cause, in so becoming devoid of any purpose. Pure consciousness is therefore established in one's own essential nature.