The story of “Why Willows Weep” is about a tree that has magical powers. In the text it states, “When the world was young, the trees and plants ruled everything alive”. In the story they are called the caretakers.
As time goes on, animals emerge and abdicate their position to the trees and plants, and eventually humans come to the world.
The human race evolves quickly, and they learn to create weapons, but the magical tree is making sure that the humans do no major damage.