With everything we do in life we identify ourselves. Here is a man who says harsh words to me. I feel anger coming on me. In a few seconds anger and I are one, and then comes misery. Attach yourselves to the Lord and to nothing else, because everything else is unreal. Attachment to the unreal will bring misery. There is only one Existence that is real, only one Life in which there is neither object nor [subject].
Evil company is always to be shunned; because it leads to lust and anger, illusion, forgetfulness of the goal, destruction of the will (lack of perseverance), and destruction of everything. (Narada Bhakti Sutra)
As soon as we react, we become slaves. A man blames me, and I immediately react in the form of anger. A little vibration which he created made me a slave.
Understanding transforms, it does not sublimate. If you understand, anger disappears and the same energy becomes compassion. Not that you sublimate: anger simply disappears, and the energy that was involved, invested in anger, is released and becomes compassion. When you understand hate, hate disappears and the same energy becomes love. Love is not against hate -- it is absence of hate.
Compassion is not against anger. When anger disappears, compassion is. Compassion is not to be fought for; it is not against passion. When passion disappears, compassion is. Compassion is your nature.