The lingam of the Shaivism tradition is a short cylindrical pillar-like symbol of Shiva, made of stone, metal, gem, wood, clay or disposable material. According to Encyclopædia Britannica, the lingam is a votary aniconic object found in the sanctum of Shiva temples and private shrines that symbolizes Shiva and is revered as an emblem of generative power. It often is found within a lipped, disked structure that is an emblem of goddess Shakti and this is called the yoni. Together they symbolize the union of the feminine and the masculine principles, and the totality of all existence, states Encyclopædia Britannica.