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. info) Sanskrit: ॐ, ओम्, romanized: Ōṁ Tamil: ௐ, ஓம்) is the sound of a sacred spiritual symbol in Indian religions.Without proper rendering support, you may see question marks or boxes, misplaced vowels or missing conjuncts instead of Indic text.