Matt Sloan wrote:
BJJ is a fast growing sport, we need to revise the way we train, Start defending against grappling and punches, and stop focusing on wrist grabs.
It is the philosophy that gives meaning to the method of training.
I recommend reading the book,The Spirit of Aikido by Kisshomaru Ueshiba, son of the Founder.
I will provide you a free study guide if you send me a pm with your email address.