Lingam-Yoni, male sex and female sex reunited. The Linga, fountain of life, is shown in its erect form, and is usually placed in the Yoni, the source of all that exists. Originally the cylindrical shape represented the formlessness of creation, then gradually became associated with Shiva. The Linga, divine phallus of Lord Shiva, is adored instead of him. Shiva temples have Shiva-Linga as the main deity.