The following is by Dr. Wayne Dyer. See his blog here: http://www.drwaynedyer.com/blog/love-your-enemy/
The poet Henry Wadsworth Longfellow wrote, “If we could read the secret history of our enemies we would find in each man’s sorrow and suffering enough to disarm all hostility.”
Harboring anger and hatred toward anyone guarantees that you remain in low energy fields where problems will continue to crop up repeatedly in your life.
Try examining every relationship in which you feel judgmental thoughts of anger and hatred. Replace those thoughts with energies of acceptance, kindness, cheerfulness, and love. You will have to make a personal commitment to, first of all, notice what you are feeling and then exercise your ability to choose to send love.
When your heart becomes pure, your enemy becomes your friend, or even more significantly, your teacher.
Your worst enemies are your greatest teachers because they allow you to examine the emotions of anger and revenge and then to transcend them. They give you the exact tools you need to elevate yourself to the spiritual energies that eliminate problems and provide solutions.
When you send love in response to hate, you accomplish one of the most difficult things for anyone. As I look into my conscience I can now honestly say, I have no one who I can call an enemy. Over the course of my life I have been disappointed many times. Some have borrowed and never repaid. Some have forgotten their promises. Some have left me for others. Some have cursed me and spread rumors about me. Some have stolen from me.
I send love to them all, mindful of the Buddha’s words: “We live happily indeed, not hating those who hate us. Among men who hate us we dwell free from hatred.”
It has been this transformation in my own thinking, perhaps more than anything else, that has allowed me to move out of those low energy problem regions of my life. It is a powerful strategy for raising your spiritual awareness