The Power Breath is for anyone who wants to hack there strength output instantly. This is one of the first things beginners should learn and one of the things experts should continue to develop.
This skill has so many benefits including: Tapping into strength you didn't know you had, Increased metabolism, creating dense muscle tissue, increased sexual control and therefore performance, higher body awareness, teaches the body to quickly respond in tension or relaxation for sports, helps with relaxation.
Bonus! Check out this video for a basic overview and then get the bonus for an in depth look into power breath mastery and specific ways to incorporate it into your practice. http://eepurl.com/cPe_Tj