In the beginning of the 3d millennium people who called themselves the Spirits appeared (actually the echo of their presence has existed long before that because the history of the mankind has witnessed White Brotherhood, Illuminates and other societies). The Spirits were known for joining up two branches of human knowledge (science and esotericism), and their ideas were proven by concrete achievements. Discoveries have been made in the formerly unknown fields of genetics, nanotechnologies, force fields, etc. and for the first time in a thousand years scientific experiments proved the existence of a different dimension - "the world of spirits", in this or that way reflected in sacred knowledge of many nations.
Biologically the Spirits were in no way different from human beings, but some peculiarities and gifts of their psyche were unique and absolutely unknown. The Spirits said that a lot of their predecessors have played an important role in social life. For example, priests, shamans, clairvoyants and prophets who in trance traveled to the "world of spirits", to the "seventh heaven", to the "underworld". But only in the beginning of the 3d millennium the Spirits became a single powerful whole.
» Discovery of Psychosphere.