Jimbo shared this article, and I love it!
"I can now attest that the experience of grappling with an expert is akin to falling into deep water without knowing how to swim. You will make a furious effort to stay afloat—and you will fail. Once you learn how to swim, however, it becomes difficult to see what the problem is—why can’t a drowning man just relax and tread water? The same inscrutable difference between lethal ignorance and lifesaving knowledge can be found on the mat: To train in BJJ is to continually drown—or, rather, to be drowned, in sudden and ingenious ways—and to be taught, again and again, how to swim."
The Pleasures of Drowning : Sam Harris