  The perspectival structure of consciousness is one aspect of its overall phenomenal organization, but it is important enough to merit discussion in its own right. Insofar as the key perspective is that of the conscious self, the specific feature might be called self-perspectuality. Conscious experiences do not exist as isolated mental atoms, but as modes or states of a conscious self or subject (Descartes 1644, Searle 1992, though pace Hume 1739). A visual experience of a blue sphere is always a matter of there being some self or subject who is appeared to in that way. A sharp and stabbing pain is always a pain felt or experienced by some conscious subject. The self need not appear as an explicit element in our experiences, but as Kant (1787) noted the “I think” must at least potentially accompany each of them.