The poem explores themes of aging, death, and isolation through the narrator's interaction with her aging mother. While driving her mother to the airport, the narrator notices how pale and frail her mother looks, resembling a corpse, reminding her of her mother's mortality and her fear of being alone. At the airport security check, her mother again looks pale and colorless like the winter moon, bringing back the narrator's childhood fear of losing her mother. Though smiling and saying goodbye, the narrator knows she may not see her mother again soon.