The Aetherius Society is a new religious movement founded in the 1950s by George King, a British yoga teacher and spiritual leader. The organization combines elements of Eastern spirituality, Western esotericism, and UFO beliefs, promoting the idea that advanced extraterrestrial beings, referred to as the Cosmic Masters, guide humanity's spiritual evolution. Members of the Aetherius Society engage in various practices, including prayer, meditation, and the study of spiritual teachings. They believe in the importance of service to others and the planet, often participating in humanitarian efforts and environmental activism, viewing these actions as part of their spiritual mission.