Robert Frost's well-known poem "The Road Not Taken" might be inspired by a decision the poet made at some critical time in the past. He likely had to decide between devoting his life to his poetry or compromising, as many creative persons do, by taking the more practical course, or "road," leading to a career that would provide security and comfort and hopefully allow him time for his art. Frost chose to lead an austere life and devote his life to poetry.
Frost was called and chosen. He was one of the few fortunate ones. Incidentally, an interesting and amusing example of a poet who was not chosen can be found in John Collier's short story "Evening Primrose," included in his 1951 collection Fancies and Goodnights.