Let's take Shalya, the brother of Madri. He wants to fight for the Pandavas, and brings his army for the same purpose
Now Shalya, is also a powerful guy. He has a boon, that he automatically feeds on the aggression of his opponents. So the more aggressive someone gets towards Shalya, the more powerful he becomes.
Fittingly, it is he who defeats Shalya
Most of the time, we are tricked into fighting them, when we have no intention to.
The more aggressive we get towards them, the worse they become.
We are the ones who give those conflicts the energy to grow big in our lives, to such an extent that they defeat us.
All we need to do, to defeat them, is keep calm. Like Yudhishtira