Mark Genco is a Brazilian Jiu Jitsu Black and he has his Master's in Buddhist Studies from Naropa University in Boulder Colorado. In his book "Inner Jiu Jitsu" Mark integrates Jiu Jitsu principles with Eastern Philosophy along with a Positive Mental Attitude as a way of life.
You can find mark on Instagram @inner_jiu_jitsu and on youtube at https://www.youtube.com/channel/UCEOSUSfh_dhhWrL2xzyA7Aw
You can also pick up a copy of his book at https://www.innerjiujitsu.com/freebook