The Hare Krishna mantra, also referred to reverentially as the Mahā-mantra, is a 16-word Vaishnava mantra mentioned in the Kali-Saṇṭāraṇa Upaniṣad. In the 15th century, it rose to importance in the Bhakti movement following the teachings of Chaitanya Mahaprabhu. This mantra is composed of three Sanskrit names – "Krishna", "Rama", and "Hare".
The Hare Krishna Tree, an American Elm in Tompkins Square Park, New York City, under which Bhaktivedanta Swami Prabhupada began the first recorded public chanting of the Hare Krishna mantra outside India.
A mantra or mantram is a sacred utterance, a numinous sound, a syllable, word or phonemes, or group of words believed by practitioners to have religious, magical or spiritual powers. Some mantras have a syntactic structure and a literal meaning, while others do not.
Mantras written on a rock near Namche Bazaar Nepal
Hare Krishna devotees in Amsterdam carrying a poster with the Hare Krishna Mantra
Japanese Mandala of the Mantra of Light, an important mantra of the Shingon and Kegon sects
A Japanese depiction of the Amida Triad as Seed Syllables (in Siddham Script). Visualizing deities in the form of seed mantras is a common Vajrayana meditation. In Shingon, one of the most common practices is Ajikan (阿字觀), meditating on the mantric syllable A.