How can you dream something that happens in future?

There is no way to produce dreams about anything that will happen in the future. A very few individuals appear to have the psychic ability to dream about the future, but those people (if authentic) seem to be born with that ability. Many individuals will have one or two dreams in their lifetimes that might predict an event, but those dreams happen spontaneously. Although one can find countless magical spells and formulas that claim to produce dreams to foresee the future, they invariably are frauds: a waste of time and money.