rest - an instance or period of resting, a motionless state.
a rest - an object that is used to support something.
the rest - The remaining part of something, the remaining people or things; the others.
Does this mean like relaxation? Because "The rest" and "Rest" mean two different things. Rest means relaxing or sleeping while "The rest" means the remaining part of the whole.
Well, relaxation is "relaks", but it's often a part of "rest". This is a sentence about resting and restoring your... powers, yes :P
But is there no way that it could be some specific rest (after a training, let's say), using "the"? The main translation doesn't have "the", but is using it completely wrong?