In the Solomon Islands, a man has a separate spirit called tarunga. At death the tarunga departs from the body and becomes a Tindalo, a ghost. If the man was a 'great man', a stylized carved head could provide an approximate symbol, not actually where the Tindalo resided, but only as a focal point for reverence and worship.
This is a replica of a piece in the Australian Museum, Sydney, Australia. It has been carved from stone from the island of Simbo, Solomon Islands.
10"H x 6"W x7"D