Those who know the past, present and future by the esoteric way know it by their spiritual development. They are the sages, the prophets. They have told the story of the prophets of the past, of what happened ages before. They had not read the records of those times. They looked into the past and knew it, or into the future. They do not explain how they know it. They do not care to give a proof that would satisfy the world. If they are asked and they give an answer, their answer is so complex that a simple person cannot understand it.