Walden by Henry Thoreau pg. 179-259

This section describes the nature and wildlife surrounding the pond, particularly in winter. Thoreau discusses the link between our spiritual and physical in our lives, stating that our common task such eating, working, sleeping etc. can be done out of out of mere animal neccesity and sensuality, but also in a more ethereal sense. These things can exert or rest us both physically and spiritually, if they are done not only out of an animal nature but also to the improvement of our higher selves. In addition to this he gives a chapter to the previous inhabitants of the area and how came to depart from it.