"The ideal is for us not to control our appetites at all, but to allow them full rein in the wake of an uncontrolled appetite for God.
It is important to take seriously the implication of our beatitude that there really is an appetite for God, and for his righteousness. We too easily speak and think as if righteousness resulted chiefly from the curbing of our appetites, as if our appetites were only for sin. But strictly speaking we have no appetite for sin. What we experience as an appetite for sin is a sick appetite which has mistaken its object. In moments of despondency we may perhaps look around and think that we should be much happier if we gave up trying to be good, if we could enjoy all the vices of the world around us. But that is only a fantasy. The desire for goodness is really a much more robust desire than any alleged desire for evil. . . ."
Father Simon Tugwell, O.P.