Why might a writer sometimes return to an earlier writing stage?

To create interest for readers. This is will make the reader more better at writing stories and explaining them to other people.

Explanation:

blank verse is often confused with free verse. free verse avoids traditional poetic forms such as rhyme schemes and conventional metres and can follow any pattern the poet wishes which means that the verses and lines can differ in length as the poet chooses. however blank verse like free verse is also unrhymed but each line in blank verse has roughly the same number of stresses and syllables, usually following the iambic pentameter