There's an even easier way:
It's called Sleep Deprivation
People who go with sleep long enough start to dream while awake. There's been plenty of experimentation on the phenomenon. They will literally see dreamimages superimposed upon their normal vision. (and presumably the same thing counts for other senses too).
Ofcourse to do this you'd have to be awake for a long time, and really force yourself into situations where it's impossible to fall asleep (even for a few seconds). And it's really not something I'd recommend (in fact I strongly urge you NOT to try it) unless under controlled experimental circumstances
-Redrivertears-
Bookmarks