"I WOULD COME TO YOGA BUT I'M SO UN-FLEXIBLE, I'D BE TERRIBLE"

"MY DOCTOR TOLD ME YOGA IS BAD FOR ME AS I'M ALREADY TOO BENDY"

Just two sentences that I regularly hear when discussing yoga with my patients.  Clearly these show two ends of the spectrum.  So which is right?  Is either right?  Or is yoga actually about something more than the shapes you bend yourself into?