An "out of body experience" (OBE) can be defined as the process of transiently separating the consciousness (spirit) from the physical body, such that the person and world are observed from outside of the body. OBE's are also known as astral projections. There are several ways people perceive an out of body experience, including dreams, daydreams, and memories. People have reported having out of body experiences while under the influence of drugs or induced by some sort of trauma, as well as near death experiences. Astral projection is taught through books, the internet, and religious techniques. An out of body experience is said to be clearer than a dream or daydream. Those who practice astral projections claim that their senses are enhanced, allowing them to see and feel with more clarity and without physical constraint. The origins of out of body experiences are unknown. However, OBE's have been practiced for many years in several different cultures. The New Age Movement is widely known for promoting and using this practice.