Swami Mukundananda
Why does thinking about someone I hate keep me from bhakti?
Hatred pulls the mind away from devotion
When the object of hatred comes to mind, you start burning and retelling what that person did, and the devotion you meant to do is lost. Keep your mind focused on the object of your devotion.
The object of your hate comes to your mind and you start burning. That person is bad. That person did this to me.