Why do some dreams sometimes come true?

Don't be surprised, modern science is just an ignorant child in front of the vast universe and the predictive function of human beings. Dreams themselves have a predictive effect. Except for dreams in shallow sleep, dreams in deep sleep generally have the function of prediction and foresight. Just as the divination results in Zhouyi accurately predict the future, this is beyond the reach of modern science. I believe that dreams are caused by the magnetic force of human bioelectricity. When people are asleep and out of control of thinking, bioelectricity is the strongest at this time. This kind of bioelectricity can replace what people do during the day to continue a logical marching state. Because bioelectricity can span a certain material distance, the events it records are often the inevitable experience of people's future travel, which will lead to the foresight of dreams. As for what you said is not a coincidence, I believe my explanation will help you here. I won't believe that it is so-called coincidence, because I also have many such dreams, and the coincidence theory is really hard to hold water.