

It refers to Atman (Self within) and Brahman (ultimate reality, entirety of the universe, truth, divine, supreme spirit, cosmic principles, knowledge). In Hinduism, wherein it signifies the essence of the Ultimate Reality ( parabrahman) which is consciousness ( paramatman), Om is one of the most important spiritual symbols.

As a syllable, it is often chanted either independently or before a spiritual recitation and during meditation in Hinduism, Buddhism, and Jainism. It is part of the iconography found in ancient and medieval era manuscripts, temples, monasteries, and spiritual retreats in Hinduism, Buddhism, Jainism, and Sikhism. The meaning and connotations of Om vary between the diverse schools within and across the various traditions.

A rangoli featuring Om surrounded by stylised peacocks Om often features prominently in the religious art and iconography of Indic religions
