Some things that happen are determined in advance. For instance, it seems to be determined in advance that the sun will rise tomorrow at certain hour. It is not an open possibility that tomorrow the sun won't rise and night will just continué. That is not possible because it could happen only if the earth stopped rotating, or the sun stopped existing, and there is nothing going on in our galaxy which might make either of those things happen. The earth will continue rotating unless it is stopped, and tomorrow morning its rotation will bring us back around to face inward in the solar system, toward the sun, instead of outward, away from it.
[Thomas Nagel, What does it all mean?]
I don't understand the bold sentence. I can't imagine it. What does the word "around" mean? Could you help me please!?