Lecanomancy is the ancient art of divining the future using pebbles and a basin of water. The ancient Assyrians would drop precious stones into the water, seeking wisdom from the pattern of ripples left on the water’s surface.
A thin layer of animal fat covered the oil, which was kept in a special bowl. The question was asked, and the diviner would drop a stone. These stones were consecrated, often marked with strange symbols. Not only were ripples studied, the diviner also studied whether the oil separated to determine the future.