You could say they got a glimpse of the future, or it might have just been coincidence.
The fact remains that this is some seriously interesting and bizarre phenomena.
Some of the most famous premonition dreams include:
Abraham Lincoln dreamt of His Assassination
Many of the victims of 9/11 had dreams warning them about the catastrophe
Mark Twain’s dream of his brother’s demise
19 verified precognitive dreams about the Titanic catastrophe