I voted for closure/closing. I think I like it because it makes me think of a door and when one door closes another opens. Or maybe that passing through a door (to move from one side to another) indicates a transition from one experience on one side of the door to another experience on the other side of the door. I am personally working on bringing a gentle acceptance to each experience in my life, moment by moment. Therefore, the words closure/closing are the most meaningful to me. I hope this makes sense!