A person stands under a night sky, searching. The speaker looks into the darkness hoping for some light, but the star they want simply isn't there. That missing star feels like more than astronomy: it suggests a hope or a guide that never shows up.
Then the poem doubts itself. "Maybe this is a dream," the speaker says, and in that dream they don't even exist. It's a strange, unsettling thought, as if the speaker can't be sure they are real or present at all. The last line explains why: "I'm always the ghost you never noticed." The "you" is left unnamed, but the speaker clearly feels overlooked, invisible, and unseen by someone who mattered.
The mood is quiet, lonely, and a little hollow. There's no anger here, just a tired resignation. The short, plain lines and the dark imagery make the loneliness feel steady and familiar rather than sudden, like something the speaker has lived with for a long time.