Sometimes people say things like "I can't draw." If you put a pen in my hand and paper in front of me, I'll compulsively start drawing something. Sometimes I wonder what kind of hell it must be to see a blank space but not be able to fill it.
Imagine having a hundred different ideas but not knowing how exactly to put it on paper or how to expand these ideas that feel right and wrong at the same time and never feeling that you can physically create these ideas in any medium or meaningful way that will make you feel satisfied.
Link
Obelisk of Light
it's even worse when you want to fill in that blank space sitting in front of you, but you just don't know how