Psychic energy had many varied frequencies. One type needed a focus point, a medium to create the energy like a poltergeist and form energy gathering points as a way to coalesque the energy and create psychic projections. It may also have served to connect time zones. (TV: The Awakening) Natural pooling of psychic energy could occur, as with Saul the sentient church, but it could also be pooled artificially. (PROSE: The Left-Handed Hummingbird)