If you need to visualize the soul, think of it as a cross between a wolf howl, a photon and a dribble of dark molasses. But what it really is, as near as I can tell, is a packet of information. It's a program, a piece of hyperspatial software designed explicitly to interface with the Mystery. Not a mystery, mind you - the Mystery. The one that can never be solved.
Villa Incognito (ed. Bantam, 2005) - ISBN: 9780553901924