Put that hammer and chisel away! You have to use a drill of course. Trepanning, it's called. I don't think the idea was to let the light in. The idea is 'Babies are born with skulls unsealed, and it is not until one is an adult that the bony carapace is formed which completely encloses the membranes surrounding the brain and inhibits their pulsations in response to heart-beats. In consequence, the adult loses touch with the dreams, imagination and intense perceptions of the child.'From such logic cults are born!
