Last year I discovered "Dependent Origination", a Buddhist teaching. During my mindfulness enquiry I came across a podcast episode on the Ten Percent Happier podcast, I highly recommend it. On it was Andrea Fella of the Insight Meditation Center, Redwood, California, USA.
Listening to her being interviewed I could have sworn that she was almost shouting, well at least talking at an elevated pitch to try and get the concept of Dependent Origination across. I was thinking, wow this person is quite aggressive, actually I'm not sure if I want to listen to this, but I persisted as she was talking about matters I had never heard of or understood, except to say that after a while I started listening so attentively that I needed to learn more and investigated Andrea further. She was obviously 'shouting' for a reason and that was for ME to pay attention!