Power of concentration adds strength within. Performer starts aligning himself with goal or excellence; these strength supports from within.
Concentration adds intensive energy and state of mind. After a failure, the performer decides to quit, where concentrated performer stands and resolves to fight back with intensive power and fire within.
Concentration materializes and fulfils the main objective. These powers lead you to excellence and makes you path making leader.
I came across an experience and information about Stephen Covey, Hema Malini, and Robin Sharma. Every day, they are focusing on concentration through the technique of meditation. There are more than 500 methods of meditation as per the philosopher Osho. One of them is concentrating in solitary.