After contemplating adinava, I recognized that I have been sensitive about my bad thoughts.
I think it is because of tāpa(heat) that made by my intention.
In my case, it was like boiling oil in my chest.
When I intend to crave something, I can feel heating process right away. Around then, heated breathe already scratch my nose.
I repeated this process for several weeks. It was enough time to teach my body that “craving is dangerous”.
Using LayDhammaFollower’s metaphor, it is like hot pan. When mind craves something in this world, it starts to burn.