How does the water of the brain turn into the wine of consciousness?

Sense data are much more controversial than qualia, because they are associated with a controversial theory of perception - that one perceives the world by perceiving one's sense-data, or something like that.

How does the water of the brain turn into the wine of consciousness?

What does it mean, exactly, for a given system to be a "neural correlate of consciousness"?

Things are still in early stages, but one can imagine that as we build up and systematize our theories of these associations, and try to boil them down to their core, the result might point us toward the sort of fundamental principles I advocate.

Why should physical processing give rise to a rich inner life at all? It seems objectively unreasonable that it should, and yet it does.

Anyway, there is a lot of really interesting work going on in the neuroscience and psychology of consciousness, and I would love to see philosophers become more closely involved with this.