The brain controls everything. I suggest feeding it useful information and not religious claptrap. Take a critical thinking course. Alter the way your brain thinks.
I used to have horrible nightmares about Armageddon, for some reason my version was being drowned by a tidal wave deep inland (I don't live anywhere near any major coastline). Once I discovered Armageddon was a fantasy dreamt up by religious wackos, those nightmares stopped. The 'falling off the cliff' dreams have also ceased.
With my Dad's dementia, he was seeing things that weren't there. Like the house being on fire several times at 2 and 3 in the morning (so why wasn't the smoke alarms going off?), or the several drug deals that were happening on my street (NOT).
He also told me he forgot to feed the cows and was so distraught over that. I assured him it was ok as he sold them years ago.
Every mystery ever solved has turned out to be NOT magic.