That said, there are three prevalent sources of fuel for the inner fire across the vastly different lives in the study. In addition to love of the doing, the two others are:

Extend Out/Circle Back: This is a continuous dynamic process of extending yourself— growing, learning, experimenting, expanding capabilities, discovering new encodings— while simultaneously drawing upon encodings discovered and capabilities developed earlier in life.

The point here is not about superhuman endurance, endless self-inflicted suffering, awe-inspiring work ethic, or even self-discipline. I’ve come to see that for individual lives it is more about feeling intrinsically compelled than about being fanatically disciplined. I used to think of myself as a disciplined person, but the more I studied these lives, the more I came to see that I never really needed discipline to keep going. If you so love what you’re doing, and you feel so well encoded for it that you simply cannot stop yourself from doing it, then how is that discipline? I love the time of bliss in the hours of transition from night to dawn, and there is nothing in the world I would rather be doing than creative work as the light changes. I still hit nearly every single day excited by the work at hand, checking my watch in the middle of the night hoping that it is far enough into the morning to justify getting up, thinking to myself, “Please, oh please, let it be at least 4 a.m., so I can get going!” That’s not discipline; that’s love.

But as I got deeper into this research, observing the vast differences across the people in this study and how they flourished at their best when life lined up with their encodings and what fed their inner fire, I gradually began to change. Subtly at first, I began to shift away from trying to change people into what I wanted them to be. Simultaneously, I shifted toward finding or creating the best possible match between their encodings and their responsibilities. It didn’t happen overnight, it was more of a managerial form of simplex stepping. I’d sense something about a person’s encodings, and then I’d make a shift in their responsibilities to fir those encodings. Then I might observe something else about their encodings, discovering something wonderful about them when they thrived in a task, and I’d make another shift in responsibilities. Together, we essentially simplex stepped toward them coming into frame in a seat on the bus.

By studying some of the most beautiful examples of people whose latent potential popped into view when they came into frame, I became increasingly attuned to seeing and sensing the encodings and fire of those around me.

Then one day, I woke up to realize that my entire emotional state had changed, not just in my work, but across my entire life. Instead of feeling frustrated with what people are not, I’d made a monumental shift to feeling grateful for what they are. I wish I’d made this shift decades earlier but as the Supreme Court Justice Felix Frankfurter pointed out, “Wisdom too often never comes, and so one ought not to reject it merely because it comes late.

Extending out feeds the inner fire by animating the human yearning for growth, learning, discovery, and challenge; it activates the joy of self-development, capturing the youthful energy that comes from starting anew. Extending out can reveal previously hidden encodings; a continuous process of discovery that feeds the inner fire. (Wow, that’s exciting— I never knew I had that inside me!) Circle back also acts as a source of reinvigoration, but in a different way. Circling back reframes big bright encodings discovered long ago, which also feeds the inner fire. To circle back by tapping encodings discovered earlier in life is like refueling for the next phase if extending out.