Guru Granth Sahib begins uniquely with the integer One ('1'). The word unique, reinforces that their is One, different from all others, unmatched, unique without a second that is the same.. The monotheistic conception of God is represented by the numerical symbol here. One God does not only mean numerically one, but IK-O-A uN-KAR (the correct Gurmukhi pronunciation) can be seen to have no relation (not derived from) the Hindi word OM which is also the Hindu primordial sound. Guru Granth Sahib begins with Mool-Mantar or the Preamble of Japji which is the Essence of the whole SatGur: