Every entity resides both in space/time (physical reality), and time/space (metaphysical reality). The latter is experienced as true simultaneity, everything all at once with no referent for past or future. Not possible to comprehend within our frame of reference but is why precognition is possible and why time is sometimes called an illusion.
Precog dreams are messages from the portion of the mind complex residing in that metaphysical space which has the overview, had many myself and they're almost always trivial, can't do anything with the info other than ponder it. I think it's just letting you know things are not what they seem, much more going on and also that you have a higher-self of a kind, somewhere.