"Be grateful to everyone" is about making peace with the aspects of ourselves that we have rejected... If we were to make a list of people we don't like - people we find obnoxious, threatening, or worthy of contempt - we would discover much about those aspects of ourselves that we can't face... other people trigger the karma that we haven't worked out.
Pema ChodronWhen we protect ourselves so we won't feel pain, that protection becomes like armor, like armor that imprisons the softness of of the heart.
Pema ChodronWhen we scratch the wound and give into our addictions we do not allow the wound to heal.
Pema Chodron