After explaining the Base, Path and Fruit of Dzogchen and the 3 aspects of each, the approaches of Dzogchen, Tantra, Shamanism and Transpersonal Psychology will be compared. All of them work with transpersonal and holotropic conditions achieved by raising the Energetic Volume Determining the Scope of Awareness, yet not all of them distinguish between (1) rigpa’s nonstatic nirvāṇa and (2) holotropic saṃsāric conditions such as (2a) the neutral base-of-all and (2b) the formless realms. Some shamanic systems raise the energetic volume by means of psychedelics in order to contact a nonphysical reality of beings it deems to be the true reality, so as to manipulate it for healing or destructive purposes.