Hare Krishna Hare Raama Chant

The Hare Krishna mantra, also referred to reverentially as the Maha Mantra, is a 16 word Vaishnava mantra which is mentioned in the Kali-Santarana Upanishad, and which from the 15th century rose to importance in the Bhakti movement following the teachings of Chaitanya Mahaprabhu.