Where Do We Go at Night?

Once a day, I lie still in a specially darkened and quieted room, and wait to be taken away. I have covered myself in blankets to assist in thermoregulation in the hours ahead, just as an astronaut dons a space suit prior to an extra-vehicular adventure. And in twenty minutes, I am gone. Where, I do not know. Seven or eight hours later, I have returned, with only a few uninterpretable dream snapshots of where I have been. This happens every single day of my life. Why do I accept that as perfectly ordinary? It’s incredible! One third of my life is spent in some other world I know nothing about!