When I was 14, and for the next four years, I was lifting and hauling 10-gallon milk cans full of milk. That will put muscles on you even if you're not trying.
Faith is from within; it is the outbreaking of human spontaneity; it is force of soul, grandeur of sentiment, magnanimity, generosity, courage. Its formulas are naturally unintelligible in their literal tenor; for, otherwise, they would represent that which is scientifically known, and would not be the mere provisional clothing of that which is not objectively given, but subjectively projected from the inmost depth of the soul.