Whoever has been there knows it: every day you try harder to understand what a malignant narcissist is doing to you. And then you try all night, too. You warp your brain, wrench your soul. You fail.
Because you can't. There is no way to understand morally corrupt people which have the whole universe centered around their defective ego.
This trying to do so at some point consumes all of your brain-power and it hurts, it starts consuming you.
But once you got rid of them there is an enormous freedom and a new love for the good that is in most people. The windows swing open, fresh air comes in, you see the sun or smell the warm rain. The whole world appears to smile.
One malignant narcissist will start to lose his grip on us.