NANAK VIJAI, more properly known as Sn Guru Nanak Vijai, in manuscript, is a narration in verse of the events of Guru Nanak`s life. During his journeys across the country and outside, Guru Nanak met a variety of people whom he won over by his gentle and persuasive manner. This explains the title of the work Ndnak Vijai, which literally means "Victory of Nanak." The author, Sant Ren, originally from Kashmir, had settled down in the Punjab towards the end of his life. He was born in AD 1741 at Srinagar in a Gaur Brahman family.
ONKAR, generally written down as Oankar in Sikh Scriptural writings, is derived from the Upanisadic word Oankara (om+kara) originally signifying pronouncing or rendering into writing the syllable Om. Known as synonym of Om it has been used in the Vedic literature and, in particular in its religio philosophical texts known as the Upanisads, as a holy vocable of mystical signification and as the most sacred of the names of Brahman, the Supreme Self or the one entity which fills all space and time and which is the source of the whole universe including the gods themselves. The word om, the most hallowed name of Brahman, is derived, according to the Gopathabrdhmana (I. 24), from dp `to pervade` or from av `to protect`.