Change is an event but a transition is the process that you go through in response to the change.
William BridgesBefore people can begin something new, they have to end what used to be and unlearn the old way.
William BridgesChange is situational. Transition, on the other hand, is psychological. It is not those events, but rather the inner reorientation or self-redefinition that you have to go through in order to incorporate any of those changes into your life. Without a transition, a change is just a rearrangement of the furniture. Unless transition happens, the change won't work, because it doesn't 'take'.
William Bridges