AUM or OM is considered by the Arya Samaj to be the highest and most proper name of God.
The Ārya Samāj doctrine, a monotheistic Hindu reform movement that rejects the idea of caste and the exclusive role of brahmins as religious leaders, first arrived in Guyana in the early 1900s with the teachings of Swami Dayanand, but grew rapidly after 1910 after the arrival of missionary Bhai Parmānand.[1][2] Unlike much of mainstream Hinduism, the movement encourages proselytization and opposes the use of images and idols in worship.[2]