The principal Sikh scripture is the Adi Granth (First Scripture), more commonly called the Guru Granth Sahib. The second most important scripture of the Sikhs is the Dasam Granth. Both of these consist of text which was written or authorised by the Sikh Gurus. Within Sikhism the Guru Granth Sahib or Adi Sri Granth Sahib is more than just a scripture. Sikhs consider this Granth (holy book) to be a living Guru. The holy text spans 1430 pages and contains the actual words spoken by the founders of the Sikh religion (the Ten Gurus of Sikhism) and the words of various other Saints from other religions including Hinduism and Islam. The term used to label the language employed by the Sikh gurus in their compositions is Sant Bhasha, a composite literary language of North India that borrows vocabulary from a variety of regional and historical lects. Shaant Ras (Essence of Peace) Guru Granth Sahib The principal Sikh scripture is the Adi Granth (First Scripture), more commonly called the Guru Granth Sahib. The Sikhs do not regard this as their "holy book" but as their perpetual and current "guru", guide or master. It was called Adi Granth until Guru Gobind Singh, the tenth and final guru in human form, conferred on it the title of the guru in 1708, after which it was called Sri Guru Granth Sahib, or Guru Granth Sahib for short. The Granth has 1430 Ang Sahib (ang meaning limb since the Guru Granth Sahib is not a book but it is the eternal Guru for Sikhs) divided into 39 chapters. All copies are exactly alike. The Sikhs are forbidden from making any changes to the text within this scripture. The Guru Granth Sahib was compiled by Guru Arjan Dev, the fifth guru of the Sikhs. The work of compilation was started in 1601 and finished in 1604. The Granth, called "Pothi Sahib" by Guru Arjan, was installed at Harmandir Sahib (House of God) with much celebration. The SGPC Guru Granth Sahib has the works of 6 Gurus while the Nihang version has the works of 7 gurus including one couplet by Guru Har Rai. Japji Sahib Japji Sahib is a Sikh prayer, that appears at the beginning of the Guru Granth Sahib – the scripture and the eternal guru of the Sikhs. It was composed by Guru Nanak, the founder of Sikhism. It begins with Mool Mantra