Call from nature,return of humanity-on theme of natural ecology in Lawrence's "Sun"

Lawrence devotes all his life to the pursuit of the original ecological beauty in nature.In his novels,he loves and praises nature,advocating the restoration of human instinct to nature.Lawrence's novel Sun focuses on the nature's power to bring new vitality to mankind as well as awaken human beings to his original instinct.Meanwhile,through his disclosure of the unbalanced spiritual ecology caused by the industrial civilization,Lawrence aims at calling on human beings to get close to nature and build a harmonious man-and-nature relationship.