shiva lingam naturally formed tumbled stones

shiva lingam naturally formed tumbled stones narmada river india tumbling year gathered ceremony hand polished ancient sanskrit means ‘sign’ ‘symbol’ symbolic sign divine creative manifestation shape manifested representation lord creation indian beliefs markings symbol yoni feminine energy creates fertilizes balance universe crystal stones rocks gems metaphysical healing gravel mineral pebble theoretical theoretic abstract conceptual mental spiritual intellectual speculative brown tan cream red patterned strips