Answer:
Don Trine enjoys interacting with the earth. This develops the theme that the earth is a living thing and it is important to connect with it.
Step-by-step explanation:
Don Trine's actions develop a theme in "The Harvest" by showing that the earth is a living thing which he is trying to connect to.
According to The Harvest", it is narrated that some farmers have observed that Don Trine likes taking long walks alone and they eventually discover that he digs hike in the earth in order to feel them and connect to them. This act makes some people believe that he is crazy.