The morning will come, even if you don’t believe it coming. It might be a sunny, cloudy, or rainy morning, but you can make it great if you choose to.
The night will come, even if you don’t want it to come. You will be surrounded by darkness, but you can always find a light—or create one yourself—in the dark.
External things change over time; it is up to you how to perceive your surroundings.