In 1974, on the 2500th anniversary of the nirvana of Mahāvīra, the Jain community chose one image as an emblem to be the main identifying symbol for Jainism. The overall shape depicts the three loka ("realms of rebirth") of Jain cosmology i.e., heaven, human world and hell. The semi-circular topmost portion symbolizes Siddhashila, which is a zone beyond the three realms. The Jain swastika is present in the top portion, and the symbol of Ahiṃsā in the lower portion. At the bottom of the emblem is the Jain mantra, Parasparopagraho Jīvānām. According to Vilas Sangave, the mantra means "all life is bound together by mutual support and interdependence". According to Anne Vallely, this mantra is from sūtra 5.21 of Umaswati's Tattvarthasūtra, and it means "souls render Service to one another".