fundamentally an organism has conscious mental states if and only if there is something that it is like to be that organism--something it is like for the organism.
every subjective phenomenon is essentially connected with a single point of view, and it seems inevitable that an objective, physical theory will abandon that point of view.
Any reductionist program has to be based on an analysis of what is to be reduced. If the analysis leaves something out, the problem will be falsely posed.