The river always flows. It will rise and drop, but it always flows.
If we seek control, we could attempt to contain the current. The fight would be immense, and most likely, futile. Aside from the adverse effects this would have on the surroundings, trying to control things that are out of our control leads to frustration and failure. Authority forces either submission or struggle.
Or we could use the flow of water to our advantage. Accepting that we do not control the current is the first step to seeing its benefit. It can propel us down the river to new places, and the flowing river moves fresh water, gives life, and creates so much for so many. We could attempt to control it, or we could work with it. Adaptation may be the answer.
We are much more likely to succeed by controlling our own actions, as opposed to the world around us. By successfully leading our own actions, we can influence in a manner that supports change. We can always work to influence that which can be influenced, but controlling external factors is a waste of time and energy. Control your actions, and adapt to the river.