The "reality" that we experience is a predictive model of what we believe is about to happen. This is required because it takes a quite some time[1] for stimulus to be received and processed by our bodies! If we didn't have this predictive mechanism the universe would seem very strange indeed.
But but because we hallucinate our reality we get the illusion that what we experience is instantaneous in respect to the cause!
[1] depending on the circuit it can take >100 msec for a nerve signal to reach the brain, and that's not accounting for the subsequent processing