OOBE stands for “out of body experience,” a name given to an unusual kind of travel. Some people believe that we all really have two bodies, a physical body and a spiritual body. Furthermore, they believe that it is possible to separate the two, and to send just the spiritual body on a trip.
In her book, Diary of a Witch, psychic Sybil Leek, for instance, describes an OOBE she had as a schoolgirl. When she was bored with math, Sybil would send her spiritual body into an English class in a different room. She claims she was once marked present in both classes at the same time!