By letting go of harmful desire, I got more of the physical depth that I'd wanted before, yet the shapes of the poses barely mattered now. What did matter was how good it felt to just be with what is and let go of what isn't.
When I started doing yoga, I loved most of what happened in the classes. One thing I did not love, though, was the chanting of "om." None of my early teachers could explain what it meant or why we were doing it.
At some point, every student must leave their teacher. It's a built-in principle of yoga. Parents raise children to be able to survive on their own at some point; its the same concept between teachers and students of yoga.