Wagner popularized the leitmotif in opera. In poetry, it appears as recurring imagery, symbols, or words that bind a work together. This repetition creates thematic unity and depth, evoking a network of associations. Poets use leitmotifs to guide interpretation, adding layers of meaning as the motif evolves throughout the poem, enriching the reader's experience through continuity and variation.

A leitmotif is a recurring musical or literary phrase, image, or theme that is associated with a particular character, idea, or situation. It is a structural and symbolic device that helps to unify a work, creating a network of associations that deepen as the motif reappears. Wagner famously used leitmotifs in his operas, and the term has been adopted by literary critics. In poetry, a leitmotif might be a repeated word, image, or even a rhythm that carries a specific meaning. For example, the recurrence of a "bell" in a poem might signal death or an ending. For the poet, using leitmotifs is a way to create thematic unity and guide the reader's interpretation, adding layers of meaning and emotional resonance through repetition and variation.