GURMANTRA, Punjabi Gurmantar, is that esoteric formula or term significant of the Supreme Being or the deity which the master or teacher confides to the neophyte to meditate on when initiating him into his spiritual discipline. The concept of mantra goes back to the pre-Vedic non Aryan tradition and to the primitive cults of magic, animism and to temism. It has since been a continuing element one way or another in the religious traditions of the world and traces of it pervade to this day among the most modern of them. The occultist and the tantrist believe that mantras have power over the deity and can make it confer the desired boon or favour.
TATT KHALSA, lit. the Real or Pure Khalsa, as against the followers of Banda Singh Bahadur who came to be called Bandai Khalsa, was one of the factions in the schism which arose among the Sikhs after the passing away of Guru Gobind Singh. Guru Go bind Singh, while sending Banda Singh to the Punjab in 1708 to lead the Sikhs, had abolished the line of living Gurus bequeathing spiritual guruship to Guru Granth Sahib. Banda Singh in the flush of initial victories made some innovations which appeared heretical to the orthodox Khalsa.
VAHIGURU, also spelt and pronounced Vahguru, is the distinctive name of the Supreme Being in the Sikh dispensation, like Yahweh in Judaism and Allah in Islam. In Sikh Scripture, the Guru Granth Sahib, the term does not figure in the compositions of the Gurus, though it occurs therein, both as Vahiguru and Vahguru, in the hymns of Bhatt Gayand, the bard contemporary with Guru Arjan, Nanak V (1553-1606), and also in the Varan of Bhai Gurdas. Guru Gobind Singh, Nanak X (1666-1708), used Vahiguru in the invocatory formula (Ik Onkar Sri Vahiguru ji ki Fateh, besides the traditional Ik Onkar Satigur Prasadi) at the beginning of some of his compositions as well as in the Sikh salutation (Vahiguru ji ka Khalsa Vahiguru ji ki Fateh varied as Sri Vahiguru ji ki Fateh).
VAHIGURU SHABDARTH TIKA (Vahiguru= Sikh term for God ; 6abdarth=sabda or word+arth or meaning), by Pandit Tara Singh Narotam, is small tract which traces the origin of the word Vahigurii, its meanings and its usage in Sikh scriptures. The tract has been published as part of the author`s Gurmat Nirnaya Sagar. Its opening part deals with die importance of the term vahiguru in the Sikh tradition and then proceeds on to trace its origin giving seventeen different forms of the word. First of all, he quotes the views of Bhai Gurdas according to whom vahiguru is a combination of the initials of Vasudeva, Hari, Gobind and Ramall four being different names of the Supreme Lord.