Om ( Aum also; Sanskrit: ) is a syllable that is considered sacred for Hindus, Jains and Buddhists.
The sound is the primordial sound transcendent, from whose vibrations according to Hindu understanding of the entire universe was created. It is the highest conception of God, the formless Brahman, the impersonal world soul. This includes the realm of the visible phenomena and the realm of the transcendent.
Om is the most comprehensive and most sublime symbol of Hindu metaphysics and was used for the first time in the Upanishads. Later Om was defined as the combination of the three sounds a, u and m to the object of mystical meditation. Among other things, it symbolizes the triad of Vishnu, Shiva and Brahma. It corresponds to the states of waking, dreaming, deep sleep, and the deepest peace. In all Hindu religions it is considered the most sacred of all mantras.
The presence of the Absolute
Om plays in Buddhism, especially in Vajrayana as mantric syllable a major role. Om is both a symbol of the form as well as the sound and denotes the presence of the Absolute. The sacred syllable is the subject of countless philosophical speculations of various faiths. Joachim -Ernst Berendt compares it to the Christian Amen.
In the Indian scriptures, the syllable Om is represented by a special character. The Om sign in the Devanagari script () is often perceived as a symbol of Hinduism.