Consider who you are. Above all, a human being, carrying no greater power than your own reasoned choice, which oversees all other things, and is free from any other master.
—Epictetus, Discourses, 2.10.1
The psychologist Viktor Frankl spent three years imprisoned in various concentration camps, including Auschwitz. His family and his wife had been killed, his life’s work destroyed, his freedom taken from him. He quite literally had nothing left. Yet, as he discovered after much thought, he still retained one thing: the ability to determine what this suffering meant. Not even the Nazis could take that from him.
Further, Frankl realized that he could actually find positives in his situation. Here was an opportunity to continue testing and exploring his psychological theories (and perhaps revise them). He could still be of service to others. He even took some solace in the fact that his loved ones were spared the pain and misery that he faced daily in that camp.
Your hidden power is your ability to use reason and make choices, however limited or small. Think about the areas of your life where you are under duress or weighed down by obligation. What are the choices available to you, day after day? You might be surprised at how many there actually are. Are you taking advantage? Are you finding the positives?
* Source: The Daily Stoic by Ryan Holiday and Stephen Hanselman