Guru Granth Sahib is comprised of 1430 pages, but the essential learning is said to be stated in the opening verse itself. The scripture opens with the word “Ik-Oankar”, which is better understood if we examine it in parts. It becomes clear then that the first word in the Guru Granth Sahib, “Ik”, is really not a word but a digit. It is the number one, written in the Gurmukhi script.
When the Teacher begins to talk of Him, he starts by uttering
And the Guru Granth Sahib answers:
True is His name, the Doer-Creator, the Protector.
And then the scripture mentions these qualities:
Free of fear/Without enemies/Timeless and undying of Form Beyond birth/Self existent.
Such a wondrous Creator, how do we realize him? And the Guru Granth Sahib has an unambiguous answer:
Through the grace and merciful gift of the Teacher will you find Him.
This opening verse of the Guru Granth Sahib is referred to as the Mool Mantra, or the basic formula of understanding the scripture itself. The Guru Granth Sahib begins with intonation of “Ik-Oankar”, which is clarified by the Mool Mantra, and the rest of the scripture can be seen as a detailed exposition of these concepts. “Ik-Oankar” is the very foundation of the scripture.