For the house of wisdom that already exists in the beyond - in the unconscious - to truly manifest within an individual human being, the whole of a person is required, along with all their four psychic functions of consciousness.
This encounter with wholeness - with the divine - is a shocking event that leaves both parties - the human and the divine - renewed.
The cover image of this volume portrays precisely this kind of event.
It was painted by a Sicilian artist, Antonello da Messina (15.