This is a complete guide to the art of Astral Projection, also referred to as astral travel - a concept found in esotericism that refers to a deliberate out-of-body experience (OBE). This experience is thought to involve a subtle body called an 'astral body' or 'body of light', through which consciousness can operate independently of the physical body and explore the astral plane. The idea of astral travel is ancient and has been present in numerous cultures. The term 'astral projection' was introduced and popularized by 19th-century Theosophists. It is sometimes associated with dreaming and certain forms of meditation. Several people have reported sensations similar to those of astral projection, which were induced through various hypnotic and hallucinogenic methods, including self-hypnosis.