The term has some validity as a word for what I take to be the inner perception of processes within the brain. The qualia of a scent, for example, can be taken

The term has some validity as a word for what I take to be the inner perception of processes within the brain. The qualia of a scent, for example, can be taken to refer to the inner processing of scent perception giving rise to a secondary perception of that processing (or other side effects of that processing, like evoking associated memories). I strongly suspect that that’s what’s actually going on when people talk about how it feels like to see red, and the like.