Are there any visualization pro's here?

[Tradl3s]

I just had a question. When we visualize, are we capable of getting to a point of actually being able to see a place at the back of our eyelids? (Like hypnagogia but much more intensified.) I like to do visual type meditation and i know alot of affirmative ways to alter myself. EDIT: I just thought of something else i wanted to know. with affirmations, or self hypnosis, what am i supposed to visualize? (Or in metaphor, where am i supposed to be when saying affirmations.) I would like to know a few meditation techniques where you say your own affirmations. (Aka Mantras.)