Change can happen at any time, but transition comes along when one chapter of your life is over and another is waiting in the wings to make its entrance. Transition does not require that you reject or deny the importance of your old life, just that you let go of it. Far from rejecting it, you are likely to do better with the ending if you honor the old life for all that it did for you. It brought you everything you have. But it is time for you to let it go of it. It's time to let it go.
William Bridges, The Way of Transition