What is the theme of poem that night when joy began by auden?

The theme of the poem "That night when joy began" by W.H. Auden is the celebration of the birth of Jesus Christ as a source of joy and hope for the world. The poem captures the jubilant mood of the Nativity, with angels proclaiming the good news, skies filled with stars, and the promise of salvation for all. Auden's powerful imagery and symbolic language convey the profound impact of Christ's birth, bringing light to the darkness and offering spiritual rebirth and transformation. The poem exalts joy, wonder, and faith as central themes in the Christmas story.