And all the lives we ever lived
And all the lives to be,
Are full of trees and changing leaves.

First, the “changing leaves” confirm the larger cyclical pattern of life and death. Second, the image of the tree links Mrs. Ramsay to Lily, who believes that the success of her painting rests in moving the tree to the middle of the canvas. This connection becomes particularly important, as the hope of achieving harmony in their world comes to rest on Lily’s shoulders.