Hare Krishna Mahamantra

হরে কৃষ্ণ হরে কৃষ্ণ কৃষ্ণ কৃষ্ণ হরে হরে। হরে রাম হরে রাম রাম রাম হরে হরে॥

This mahamantra, mentioned in the Kali-Santarana Upanishad, consists of a repetition of sixteen names, offering devotion to God through the names 'Hari' and 'Rama'. It gained worldwide recognition through Chaitanya Mahaprabhu's sankirtan movement and later through ISKCON.