Translations of letters from Imam-i Rabbani's Maktubat. Subjects include importance of having a correct belief and many issues related to namaz, sunnat, tawba, halal, haram, bid'at and tasawwuf.Hamd and thanks be to Allahu ta'ala, who has blessed me with the lot of publishing the third fascicle of Endless Bliss, which is one of the books I have prepared so that those who have been gifted with the honor of being human will be valuable and in order to provide them with attaining comfort and ease in the world and endless blessings after death! It being an important task and worship for those who have had the value of being Muslims to do favors and services to every creature, I have attempted to do this work. I send my prayers to Allahu ta'ala so that He will bless my service and my readers.