The document summarizes the symbolism and worship of the Sivalinga, which represents the Hindu god Shiva. It is typically depicted as a stone column called a lingam, symbolizing the union of male and female divine energies. Lingams can have various shapes and sizes. Major temples feature large, prominent lingams of stone. The lingam is worshipped in different ways by various sects of Shaivism and has roots in ancient Indian fertility cults. However, it represents divine spiritual energies rather than being a symbol of human sexuality.