Two people lie outside on a cold autumn night, watching a clear sky full of stars. The speaker says the shivering is worth it, and the poem follows the night as it passes: the stars seem to dance, the moon lights up the other person's face, and the sky slowly shifts from black to navy blue.
The speaker pictures the stars moving to a song nobody can hear, where no step is wrong. That image gives the night a calm, forgiving feeling. The line about the other person's mind being "up in space" suggests they are lost in thought, while the speaker is quietly watching them.
The ending turns playful. Morning arrives and they have fallen asleep on the front lawn, which the speaker admits with a cheerful "(oops)." The final line is the real point: the speaker doesn't mind, because they got to spend the night with someone they care about. The mood is peaceful, warm and a little funny.