This big problem manifests itself countless times a day. Every time a sentient organism comes into existence, its consciousness freshly minted, we have the same transition from insentient matter to "mindedness." Cells combine and grow during gestation until the brain is mature enough to decant experiences: At first this clump of cells is without mentality, and before you know it there is consciousness throbbing away in there. Where does it come from? What manner of secretion is this? How does mere meat turn itself into conscious awareness? Once you were just insentient cells, no more aware of anything than your liver is now. Today you are brimming with consciousness. How did you make the grade? What catapulted you into consciousness? There must be some kind of natural process behind this astonishing leap, but this process is obscure.