Anaphora or other repetition that develops, varies, or advances through poem rather than remaining static. Each recurrence builds on previous instances, creating momentum toward climax or developing theme through cumulative variation. Walt Whitman employed repeated progression throughout catalogues where repeated phrases accumulate variations and extensions. The repetition itself tells story or develops idea rather than merely reinforcing fixed refrain. Can create sense of gathering force, accumulating evidence, or progressive transformation as familiar elements recur with meaningful differences.

Anaphora or other repetition that develops through the poem, not just static recurrence. Each repetition advances or varies slightly. Creates momentum and builds toward climax. Walt Whitman used repeated progression throughout his catalogues. The repetition itself tells a story or develops an idea.