 Parapsychology investigates phenomena that are alleged to lie outside the boundaries of ordinary naturalistic explanation. These phenomena include telepathy, clairvoyance, precognition, mediumistic messages, possession-type cases, reincarnation-type cases, apparitions, and others. Not all of these phenomena are directly relevant to survival and the afterlife, but some of them, if accepted as veridical, do provide such evidence: for instance, messages received through a medium, allegedly from a deceased person, that contain information to which the medium has no other access.