Letting go.
From The Pathways to Possibility by Rosamund Stone Zander:
It’s a paradox: developing the skill to let go of worries, to let go of whatever you claim you are right about or feel you deserve recognition for—letting go of fears and prejudices, tension and efforts at avoidance—ironically gives you power in your life, the very thing you were trying to accomplish through evasion and resistance. It’s the freedom and power of knowing you can handle any situation with grace, without getting stuck in the middle. Let’s call it the power of a continuous free swing.
So here’s the game: resist, and let go. Hold on to an opinion passionately, and then drop it. Be obsessive about figuring something out, and then let it go. Be righteously indignant and then release the whole thing. Letting go is an interior action, but an action nonetheless. The action feels like a release, followed by an infusion of pleasure and peace.
Letting go is a very different action from the slump into despair you can experience when you give up because things are too tough. Letting go returns you to the present moment, which you may not realize you have ever left, and gets you back into the flow of things. It does wonders for the people around you.