“Dear one, the world is waiting for the sunrise…”
We are creatures born to be intrigued by sunrise and sunset both, but aren’t we less likely to wait for the sunset? Nevertheless, both waking and sleeping are active states, one preparing for the other. Both absolutely necessary for our biological existence. But sleep is less articulate, more of an unknown country, populated with dreams and other non-verbal behavior, attuned more to signals from inside the skin. The things accomplished during sleep are much less known, like the life processes in the deepest ocean trenches. What happens during sleep to the immune system, and to memory processes which structure our next day? Is sleep really when the brain’s glial cells are able to clear out metabolic products and restore energy again? The way our bodies have come to be on this planet, it looks as if sleep is going to be with us for the next few billion years.