In the Dîghanikàya, Ananda ask the Buddha a question that is at the heart of this work. “Some Buddhist monks, including knowledgeable men, who understand Buddhist doctrine and teachings, or have worth of character, often come to visit you to get advise. In fact, I often ask or discuss with them about your teaching. But, after you have passed into Paranirvana, they won’t come anymore; so with whom I might talk or discuss with? The Buddha answered: “Ananda, you should not be worried, my disciples later on, including Sangha and lay people, will have 4 holy places where they can go to remember my teachings: