The Principle of Precognitive Dreams

Precognitive dreams occur when the manas allows the mind consciousness to know in advance things that are going to happen, which shows that the manas can know future events that have not yet occurred and can reach into the future. Why is this so? Because the tathāgatagarbha, in accordance with karmic seeds, can know the affairs of the three realms of the world—past, present, and future. The manas, relying on the dharmas that the tathāgatagarbha perceives, gives rise to its own view. Since the tathāgatagarbha can perceive all dharmas, the manas can likewise perceive all dharmas; it is only that the essential nature of what the two perceive differs. Because all dharmas are illusory, they seem miraculous; in reality, they are all empty, and there is nothing miraculous about them at all.