What is the theme of Spenser’s ‘Epithalamion’? [British Poetry]

The theme of Edmund Spenser's "Epithalamion" is a celebration of love and marriage. The poem is written in the form of a wedding song and is addressed to Spenser's wife, Elizabeth Boyle. The poem praises her beauty, virtue and praises the joys of married life. It also describes the preparations for the wedding day, the ceremony itself, and the ensuing feast and celebrations. The poem is also rich in imagery and allegory, with many references to classical literature and mythology. It is a pastoral poem where Spenser expresses his love for his wife and the beauty of nature.