Ek Onkar means “God is One.” The symbol is an emblem of the Sikh religion and is found on Gurdwaras (Sikh temples). The symbol is derived from the Sanskrit OM, as written in the Gurumukhi script. Ek Onkar means “God is one,” and relates to the Sikh belief in the unity of God.
Ek Onkar is the beginning of the Sikh Mool mantra, and the first phrase in the Sikh Holy book, the Guru Granth Sahib:
There is but one God. Truth by name, the creator, all-pervading spirit, without fear, without enmity. Whose existence is unaffected by time, who does not take birth, self-existent, who is to be realized through his grace.