linga stones are abstract symbols associated with the god
Lingam A lingam (Sanskrit: लिङ्गम्, IAST: liṅgaṃ, lit. "sign, symbol or mark"; also linga, Shiva linga) is an abstract or aniconic representation of the Hindu deity Shiva, used for worship in temples, smaller shrines, or as self-manifested natural objects.[1][2] The lingam is often represented as resting on disc shaped platform called a yoni[3] or pitha.[4][5][6] Lingayats wear a lingam, called Ishtalinga.[7][8]