Om mani padme hum
Oṃ maṇi padme hūṃ (Sanskrit: ओं मणिपद्मे हूं, IPA: [õːː məɳipəd̪meː ɦũː]) is the six-syllabled Sanskrit mantra particularly associated with the four-armed Shadakshari form of Avalokiteshvara (Tibetan: སྤྱན་རས་གཟིགས་
Chenrezig, Chinese: 觀音 Guanyin, Japanese: 観音 Kannon), the bodhisattva of compassion. The first word Om is a sacred syllable found in Indian religions. The word Mani means "jewel" or "bead", Padme meaning the "lotus flower", the Buddhist sacred flower, while Hum represents the spirit of enlightenment.
It is commonly carved onto rocks or written on paper which is inserted into prayer wheels. When an individual spins the wheel, it is said that the effect is the same as reciting the mantra as many times as it is duplicated within the wheel.
Transliterations
In English the mantra is variously transliterated, depending on the schools of Buddhism as well as individual teachers.
Most authorities consider maṇipadme to be one compound word rather than two simple words. Sanskrit writing does not have capital letters and this means that capitalisation of transliterated mantras varies from all caps, to initial caps, to no caps. The all-caps rendering is typical of older scholarly works, and Tibetan Sadhana texts.