Beast Mentality boils down to two things:

Are you ok with pain? 
abundance of mental toughness? 
You might just be in #beastmode

If you want to know where the term beast mode comes from you don't need to go far:- Adebayo Akinfenwa (born 1982), English footballer nicknamed "The Beast", with a clothing label "Beast Mode On"

#gorilla #animal #beast #gymwear #bjj #spats #bjjart #animalart #grappling #jiujitsu #brazilianjiujitsu #bjj4life #mma #boxing #martialarts #mixedmartialarts #fighting #ufc