Great little video with 3Jack Top 50 instructor, Mark Evershed.
definitely agree with Mark on this point. I used to work for a company where I was completely new to the industry that was filled with, IMO, a lot of useless and non-sensical jargon. It was so crazy with all of the jargon that it was almost like listening to people speak Japanese to me. Eventually my boss at the time didn't think I asked enough questions and I told her 'I don't know what questions to ask!'
With golf the instructors usually are willing to take the time to re-explain things to the student. So if you ask an instructor a question and they don't answer it or won't answer it, it's probably time to find a new instructor because chances are that they really don't know the answer.
When you can truly understand the how and the why, that's when you start to 'own' that part of the swing and are on a path to better golf.