The author compares Jung's concept of individuation with the mysticism of t
he Spanish Carmelite John of the Cross. Although different epistemological
assumptions, the comparison reveals astonishing parallels. For example, Jun
g's metaphor of the night sea journey has a parallel in John's images of th
e 'dark night': the religious experience of finding God helps at the same t
ime to deepen the relation to one's self and to develop new relationships t
o the other. For both, Jung and John of the Cross, the night symbolizes the
painful process of separating (psychologically as well as religiously) fro
m all one-sided fixations as a prerequisite for the uniting of opposites. W
ith respect to the understanding of man's need for becoming whole, the Anal
ytical Psychology and the mysticism of John of the Cross could complement e
ach other; they should try to have a dialogue, although they have different
competencies to offer.