Om or Aum is that the sound of a sacred spiritual symbol in Indian religions, mainly in Hinduism. It signifies the essence of the last word reality, consciousness, or Atman. More broadly, it's a syllable that's chanted either independently or before a spiritual recitation in Hinduism, Buddhism, and Jainism.
The meaning and connotations of Om vary between the varied schools within and across the various traditions. it's also a part of the iconography found in ancient and medieval era manuscripts, temples, monasteries, and spiritual retreats in Hinduism, Buddhism, Jainism, and Sikhism.
In Hinduism, Om is one of the foremost important spiritual symbols. It refers to Atman (soul, self within) and Brahman (ultimate reality, entirety of the universe, truth, divine, supreme spirit, cosmic principles, knowledge). The syllable is usually found at the start and therefore the end of chapters within the Vedas, the Upanishads, and other Hindu texts.
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