Pradakshina (also called parikrama) is the devotional practice of walking clockwise around a murti, sanctum, temple, sacred tree (especially the peepal or tulsi), holy hill, or river. Keeping the sacred object on one's right expresses reverence — the right side is traditionally associated with auspiciousness. Different deities have customary counts: commonly one for Ganesha, three for Shiva (with the convention of not crossing the water outlet of the lingam, instead reversing direction), four for Vishnu, and so on, though practice varies by temple and region. Grand parikramas of entire sacred sites — Govardhan Hill, Arunachala at Tiruvannamalai, the Narmada River — are major pilgrimage undertakings in their own right.