"When one door closes, another opens."
You’ve probably heard this one a number of times. The quick explanation behind the meaning of this expression is - When you miss out on an opportunity, or a phase of your life ends (when a door closes) it creates space for new opportunities to arise and phases to begin (another door opens). To me this makes sense and actually fits within the general laws of the universe. Things in life trend to achieve a state of equilibrium to maximize something called entropy, which is a measurement of the order or disorder in a system. Basically, if something offsets that equilibrium in a negative way, with a door closing, then the natural universal response is to reestablish an equilibrium by opening new doors.
But an important piece of achieving this equilibrium requires you and your taking action. In fact, the quote we’re speaking about is only a fraction of the full quote stated by inventor of the telephone Alexander Graham Bell - “When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us.”
While the universe creates abundance and so many different opportunities to reset the balance, we as humans can be too narrow-minded and focused on the wrong things to even notice the possibilities. But with this new awareness comes an amazing opportunity to take action in a positive and impactful way! And it all starts with trusting a physical law of the universe - “When one door closes, another one opens.”