In the phrase "the smallest sprout shows that there is really no death", the use of figurative language is symbolism.
Explanation:
Simbolism is used by writers to enhance their writing, and can give a literary work more richness and color to make the meaning of the work deeper. In this case, the sprout represents, symbolizes, life's triumph over dead. The phrase itself is a symbolism of hope and life, because there's always a way out, a light within darkness.
