From the Starting Line to the Sea — How Growth Happens Step by Step
Running the Miami Half Marathon this past January as part of Chai Lifeline’s Team Lifeline was a uniquely special experience. Most races are about personal goals, finishing, improving a time, or setting a new personal record. But this race was different. Every runner on Team Lifeline was running for something far bigger than ourselves. We were running to support and give strength to children and families facing challenges no one should have to face alone.
And somewhere around mile eight, as the race became harder and the fatigue set in, my mind returned to a concept that had shaped my training in a profound way: VO₂ max.
VO₂ max is the maximum rate at which your body can take in and use oxygen during intense exercise. The higher it is, the more efficiently your body can perform when the effort becomes demanding. What fascinated me most wasn’t the physiology; it was how VO₂ max actually improves.
VO₂ max does not increase through comfortable, steady effort alone. To raise it, you need short bursts of work at an intense level, followed by recovery, and then repeated again and again. Runners call this interval training — you don’t exert at that constant intensity, but instead visit it in spurts. Each time you push close to your limit, your body adapts. The heart grows stronger and your muscles use oxygen more efficiently. Slowly, almost imperceptibly, your overall capacity expands.
In other words, VO₂ max doesn’t improve on race day. It improves in short, uncomfortable intervals that you choose again and again.
Growth works the same way. Spiritually, emotionally, and physically, we often live well below our true capacity — not because we lack potential, but because we rarely place intentional demands on ourselves. We stay where it’s comfortable and avoid the moments that leave us breathless. But capacity, whether physical or spiritual, only expands when we step beyond what is easy and familiar.
The Exodus from Egypt — the journey from the starting line to the sea — was not won in a single heroic moment. It was built in intervals: each plague, each act of faith, each step into the unknown. The Jewish people did not become a nation overnight. They became one step by step, test by test, miracle by miracle.
Growth happens the same way today. Not in one dramatic transformation, but in the small, deliberate intervals — the daily learning, the extra act of kindness, the prayer offered with a little more kavvanah than the day before.
Choose your interval. Take your step. The sea will split.