Fight the enemy where they aren’t!(from past)

I’m perplexed by the mutability of the subjects , the important thing is to be naught and to achieve it we have to be proud of our enemy’s victory! It’s really amazing! It changes hard! Changing the brain language is good! But what to do with habits of past?  I think  we have to use them in our way and don’t necessarily oppose them! What enemy? Is there any enemy? Is it only our mind’s virus?