"I think such an hability has a double efect... I you are convinced that that Jedi over there is "casting" some sort of spell that will make youy stronger, faster, etc, then you will fight better. I think its call Battle Morale. In the other hand if this skill realy has an efect, it must be mesurable, you will fight better becaus of the Battle Meditation, even if you dont belive in it. You could proove it with a simple experiment. Make a combat betwen two individuals, one powerfull enough to defeat the other in all the combats. Then aid the weaker with Battle Meditation without his/her knowledge, an watch the results." Voda explains.