The Guru Granth Sahib is the central holy religious scripture of Sikhism, regarded by Sikhs as the final, sovereign and eternal Guru following the lineage of the ten human gurus of the religion. The text consists of 1,430 angs (pages) and 5,894 shabads (line compositions), which are poetically rendered and set to a rhythmic ancient north Indian classical form of music. The bulk of the scripture is divided into 31 main rāgas, with each Granth rāga subdivided according to length and author.