The earliest Indian Buddhist (and Jain) religious monument, in origin a hemispherical funerary mound. The first were built to enshrine the cremated remains of Buddha and his disciples; later they commemorated the teaching of Buddha (or of Mahavira, the founder of Jainism) though enshrining the relics of other teachers. Early stupas, such as those at Sanchi of C3-1 BC, consist of hemispheres of earth and rubble raised on low cylindrical bases and faced with bricks or stone. Miniature stone railings mark the square platform at the summit, with a central stone mast supporting a finial with one or more umbrella-like tiers, called a chattra. A relic casket is embedded below. A paved pathway for worshippers to perform the rite of pradakshina by circumambulation surrounded the stupa, usually with a stone railing and four gateways, often bearing elaborate sculptural decorations. The stupa itself is undecorated, but it is imbued with complex cosmological and/or Buddhist symbolism.