The poem reflects on the themes of loneliness, longing, and the beauty of the moon on a drunken night, inspired by thoughts of the poet's brother. It questions the permanence of joy and the inevitability of separation, using the moon as a metaphor for the cyclical nature of life and relationships. Despite the physical distance and the barriers that separate people, the poem concludes with a hopeful note on the shared experience of the moon's beauty, symbolizing unity and the enduring human spirit across distances.