On page XVI at the top it is said that:
Krishnamacharya spent more than seven years with his teacher…
From what I understand, this is how yoga was traditionally passed from teacher to student. Whereas today, we spend 90 minutes or so with our teachers a few times a week with their attention spread over an often large class of students. Is it even possible for yoga to be shared in such short time spans? Are we missing something and not even realizing it?

