Time controls everything in our lives and will eventually take away everything we have. The passage discusses how our brains are constantly working during the day to think, process information, and allow us to do tasks, yet we often take time for granted. It notes that if we lose someone or something, time will not allow us to get it back, and dreaming at night is the brain's way of passing time but also wasting it. The character has come to realize they should treasure and embrace the time they have with others instead of throwing it away, but that in the end, time will make everything disappear from our grasp.