How does Kimmermer structure her stories in the book, Braiding Sweetgrass?

Robin Wall Kimmerer’s book is divided into five sections, titled “Planting Sweetgrass,” “Tending Sweetgrass,” “Picking Sweetgrass,” “Braiding Sweetgrass,” and “Burning Sweetgrass.” Each section is titled for a different step in the process of using the plant, sweetgrass, which is one of the four sacred plants esteemed by Kimmerer’s Potawatomi culture.