Part ambient-trance group, part holistic listening-music healers, Ambient Temple of Imagination was formed in 1992 by Richard Sun and Seofon in San Francisco, originally as a chill-out room for raves around the area. As the ambient-house style entered dance music as a whole during the next few years, Sun continued putting on ambient nights and providing alternatives to dancing. The duo also began recording, and released two albums for San Francisco's Silent Records, Mystery School and Sonic Acupuncture. Recorded live at a rave in 1997, Planetary House Nation was released the following September. ~ John Bush, All Music Guide