Astral projection (or astral travel) is an out-of-body experience achieved either awake or via lucid dreaming or deep meditation. People who say they experience astral projection often say that their spirit or astral body has left their physical body and moves in another dimension known as the spirit world or astral plane. The concept of astral projection has been around and practiced for thousands of years, dating back to ancient China. It is currently often associated with the New Age movement.
Psychics often say that the subconscious (or dreaming) mind contains the spirit or astral body, resulting in falling dreams or waking up with a falling sensation or sudden jerk. Most dreams are not remembered by the conscious mind, making the experience of astral projection a subject of subjectivity.
Some people can astral project naturally. Others are afraid to remove their consciousness from the physical body and never learn to astral project.