To the right is the athanor (furnace) with the vessel in the centre, from which the lapis (hermaphrodite) will arise. The vessels on either side contain Sol and Luna.
Jung reproduces and glosses an iconographic programme in which the athanor is identified as the generative furnace housing the central vessel, flanked by Sol and Luna, from which the lapis — the individuated self figured as hermaphrodite — will emerge.
, Alchemical Studies, 1967thesis