Channeling is a psychic/spiritual practice in which a living person collaborates with another spirit to communicate information and opinions. In the process of channeling, ideally, the spirit of the channel steps into the background, and that of the channeled spirit enters the channel's aura, moves into the foreground of the channel's awareness, and engages in useful communication or healing.
John channels a being called Mataji. Mataji is both a feminine version of Seth, (the entity that Jane Roberts channeled), and a combination of the energy from the lineage that Yogananda Paramahansa's teachers came from.