Narukama refers to sacred cauldrons used in a divination ritual, often called kamanari or yunami shinji, practiced at certain Shinto shrines to discern the will of the kami. In this rite, water or oil is heated in a large cauldron, and the sound, boiling pattern, or steam produced is interpreted by priests as an omen concerning matters such as harvests, community fortune, or the year ahead. While popularly linked to fortune and prosperity, the practice is fundamentally a form of oracular ritual rather than a deity itself, rooted in longstanding shrine tradition.