You must let all the emotions move through you and around you. Feel everything. Understand everything. Good and bad are both beautiful—even pain. Learn the lesson and gain the wisdom as you feel, experience and live with every emotion.
Eventually, ONLY the negativity passes through. Sadness, regret, pain, betrayal, revenge, hatred, resentment, the need to look back…dissolves. Gone. All that’s left is the love for all that is, was and will be. You are at peace. The ego is at rest.