Why Ganga river is considered holy? Mythological Significance: According to Hindu mythology, the Ganga is said to originate from the matted locks of Lord Shiva, one of the principal deities. It is believed that the river's sacred waters possess purifying qualities and can cleanse one's sins. Spiritual Beliefs: Hindus consider the Ganga to be a living goddess, known as "Ganga Mata" or "Mother Ganga." Devotees believe that bathing in the river and consuming its water during religious ceremonies ca