You have something like thirty trillion cells. Every one of them is breathing, cleaning house, and making a small decision right now about whether to rest or rev up. When you step onto your mat, you're not just moving your body. You're moving a city.

Your genome isn't a locked script you're stuck reading. It's more like a giant mixing board with millions of knobs. And you put your hands on those dials every single day, whether you mean to or not.

Every cell in your body carries the same DNA. The same three billion letters. And yet a brain cell and a liver cell live completely different lives. The text is identical. What differs is which pages are open.

There's a line that gets repeated in yoga and medical circles both. When all else fails, yoga works. It sounds like a slogan. Then you start watching what actually happens in bodies that practice, and it stops sounding like a slogan.

Your bones are not the scaffolding. They're alive. They have a blood supply, they have nerves running through them, and right now, while you're listening, they're rebuilding themselves in response to how you live.

There's no such thing as a relatively healthy person. There's just you, today, in the body you actually walked in with.

Yoga changes your body. Not in a poster-on-the-wall way. In a shows-up-in-a-blood-test way.

Most yoga teachers think the job is teaching yoga. The adjustments. The sequences. The philosophy. All the stuff that made them fall in love with the practice in the first place. And they're wrong about what the job actually is.

Most yoga teachers scale their business wrong, and they do it in a very specific order. First the beautiful space. Then the cork floors. Then the staff, the prices to cover all of it. And then they stand in that gorgeous room and wonder why the only people who show up are rich.

A yoga class is full of claims. Engage your bandhas. This posture opens the hips. The tradition teaches us. Dozens of claims an hour. And almost nobody ever tells you where a single one of them came from.