Originally Posted by victorbravo

I'm glad it helped. I'll exand just a little more. I agree that in common usage, "imaginary" means unreal or fanciful. But the definition of imagination also usually includes something like this:

"The formation of a mental image of something that is neither perceived as real nor present to the senses.
The mental image so formed.
The ability or tendency to form such images."

So the statement "all ideas are imaginary" isn't necessarily a problem as long as we are not saying they are fanciful, but rather we are saying that we are thinking of something (real) that is not present to the senses. That, I think fits fine with our Biblical understanding of concepts and truth--we don't taste, see, or smell them, but we know they are real.