Is Asceticism Killing Sin, or Feeding Sin?

Asceticism has a legitimate place in the christian life, as does thankful enjoymentof food and drink that god gives us. Eating and drinking can become gluttony with a loss of self control. Is asceticism killing sin, or feeding sin? Those are the key questions. We can't just say that asceticism is bad because the false teachers at colosse were using it. Because paul himself and jesus taught that we should make sure, by self denial, that we are not being enslaved by any good.