What is the author's style in Parable of the Sower by Octavia E. Butler?

The novel takes its title from the parable of the sower in the gospel of Luke. The sower is like the spiritual teacher who spreads the word of truth. Some people listen; others do not, just as seeds take root in some places but not in others. In the New Testament, the sower is Jesus; in the novel, it is Lauren. The metaphor of the seed occurs again in the name Lauren gives to her new religion, Earthseed. It is also reflected in the name of the first Earthseed community: Acorn. The acorn image occurs earlier in the novel, too. Lauren loves to eat bread made with acorns rather than wheat or rye. Her father tells her that he had a difficult time persuading his neighbors to eat acorns. They wanted to cut down the oak trees and plant something else they considered more useful. Lauren learns from a book how to make acorn bread, and this helps to sustain their group as they travel north. The acorn image conveys the idea that the seeds of new life are always available, not only in nature but in humans, too.