I can do this, the best I can describe it is that your brain "knows" you're imagining it so it's different than for example hallucinations. It's similar to rep

I can do this, the best I can describe it is that your brain "knows" you're imagining it so it's different than for example hallucinations. It's similar to replaying music in your head (if you can do that), you can hear the tune but your ears "know" no music is actually playing.