Shiva Lingams in India have tended to become more and more stylized over the centuries , and existing lingams from before the 6th century show a more leaning towards the naturalistic style , with the glans clearly indicated . Shiva Lingams in India have tended to become more and more stylized over the centuries , and existing lingams from before the 6th century show a more leaning towards the naturalistic style , with the `` glans '' clearly indicated .