[naasking]

> It's like a dim picture that originates in my brain--I can kind of put something together, but it lacks any detail or clarity.

It's like having a second visual sense, but it's not strictly the same as standard vision. It often does lack clarity, but as with any other sense, you can sharpen specific details by focusing on it. Your real vision can feed into this secondary vision, but not the other way around, which would be a hallucination.