This is one of the first comprehensive books about the Sikh religion in the English language. MacAuliffe had extensive access to manuscripts of the Sikh sacred writings , as well as support from Sikh scholars and leaders of the time. This volume covers the life and hymns of the 6th, 7th, 8th and 9th Gurus being Guru Har Gorind, Guru Har Rai, Guru Har Krishan, Guru Teg Bahadur respectively. This is volume 4 of 6.