The Bulol or rice god is a carved human figurine into which a certain class of spirit that's said to incorporate itself when worshipped. Bulols are kept in the house or granary, and are usually made in pairs. They are carved of narra wood, which represents wealth, happiness, and well-being. Every step in their production requires a ceremony, from tree selection to arrival at the owner's house; a consecrated bulol has been bathed in pig's blood, had myths recited to it, and received offerings of wine, ritual boxes, and rice cakes.

http://class.csueastbay.edu/anthropologymuseum/virtmus/Philippines/Crafts/Ifugao_Bulols.htm