Original text
हरे कृष्ण हरे कृष्ण, कृष्ण कृष्ण हरे हरे। हरे राम हरे राम, राम राम हरे हरे॥
Transliteration
Hare Krishna Hare Krishna, Krishna Krishna Hare Hare. Hare Rama Hare Rama, Rama Rama Hare Hare.
Sixteen words, three names
Known simply as the Maha Mantra — "the great mantra" — this chant is built from just three names repeated in a fixed pattern: Hare, Krishna and Rama. "Hare" addresses Hari (Vishnu/Krishna) through the divine feminine energy, often understood as Radha, so each repetition is really an invocation of both the divine and the devotion that reaches toward it.
Where it comes from
The mantra appears in the Kali-Santarana Upanishad and became central to Gaudiya Vaishnavism through the 16th-century saint Chaitanya Mahaprabhu, who popularised public group chanting (sankirtan) as a path open to everyone, not just those trained in ritual or Sanskrit.
How it's chanted
Two styles dominate: quiet, personal japa on a mala of 108 beads, done in meditation or while walking, and loud, communal kirtan with drums (mridanga) and hand cymbals (kartals), where the tempo often builds from slow to ecstatic over the course of a session. Both are considered equally valid — the mantra doesn't require a particular mood to "work," which is part of its appeal.
Why it spread so widely
Because it makes no ritual demands — no fixed time, no particular posture, no Sanskrit fluency — the Hare Krishna maha-mantra travelled further outside India than almost any other chant, becoming familiar even to people with no other connection to Hindu devotional practice.