BOOK VI, Part 1
(Nirvana Khanda Purvadha)
This section explains that the atman is the true form (swarupa) of the individual being (jiva). The seeker is instructed to give up all ideas of diversity and to still the movement of the mind. Once the mind is quiescent one should persist in remaining absorbed in the atman in the form of pure consciousness (chit). From this practice, a stage comes when the person perceives the identity of his or her own atma with Brahman (God). The manifest universe is perceived as no different from Brahman and, like the subtle tree that lies embedded in the seed, this whole universe in the form of created and uncreated beings is seen as a subtle seed-form lying within each persons own heart.
This sub-section also includes the highly instructive teachings that Lord Shiva gave to Sage Vasishta. At this stage of the discourse Rama becomes absorbed in deep dhyana meditation.