The connection between Wall-e, Eve(a) and the Righteous Branch continues in my thoughts.
The plant changes everything.
As soon as Eve sees the plant, she hides it, but only to protect it. She is concerned only with the 'directive.'
Wall-e protects Eve because he loves her as she protects the plant...but he does not know why she does it. He only knows that he loves her.
And when she leaves, he must follow.
The plant motivates everyone to get out of their chairs and live again.
See how many parallels to Advent you can find in this story.