Studies in anthropology led Jung to adopt into psychology a concept prevalent in shamanic societies: that of soul loss. Typically recognized as a state of general malaise, soul loss provides another common thread between both Jungian psychology and shamanism.
Soul loss is a fragmentary sequence in which parts of the whole wander away, flee, or get split off, lost, or disoriented resulting in a loss of vitality or life force (Ingerman, 1991). In a shamanic worldview, the dislocated parts are carried away to the underworld; in psychology, they are said to recede into the unconscious.
With the critical absence of vital parts of our soul, we are left feeling weak, empty, depressed, deflated, or anxious, and commonly trend toward mental or physical illness. Jung cited the loss of connection between our ego and the Self as the fundamental cause of soul loss... (Click title for more)
Via Bonnie Bright