Richard Hoggart argues that the main subject of Lady Chatterley's Lover is not the sexual passages that were the subject of such debate but the search for integrity and wholeness. Key to this integrity is cohesion between the mind and the body for "body without mind is brutish; mind without body...is a running away from our double being." Lady Chatterley's Lover focuses on the incoherence of living a life that is "all mind", which Lawrence saw as particularly true among the young members of the aristocratic classes, as in his description of Constance's and her sister Hilda's "tentative love-affairs" in their youth:
So they had given the gift of themselves, each to the youth with whom she had the most subtle and intimate arguments. The arguments, the discussions were the great thing: the love-making and connection were only sort of primitive reversion and a bit of an anti-climax.
The contrast between mind and body can be seen in the dissatisfaction each has with their previous relationships: Constance's lack of intimacy with her husband who is "all mind" and Mellors's choice to live apart from his wife because of her "brutish" sexual nature. These dissatisfactions lead them into a relationship that builds very slowly and is based upon tenderness, physical passion, and mutual respect. As the relationship between Lady Chatterley and Mellors develops, they learn more about the interrelation of the mind and the body; she learns that sex is more than a shameful and disappointing act, and he learns about the spiritual challenges that come from physical love.
http://en.wikipedia.org/wiki/Lady_Chatterley%27s_Lover