Electricity was a reality in the universe when Moses led the children of Israel out of the land of Egypt. This is true of all natural laws; they have always existed but only when understood may they be used.
Enthusiasm reaches out with joy, for there is nothing depressing about it; it reaches out in faith, for there is no fear in it; it reaches out with acceptance, for there is no doubt in it; it reaches out as a child for there is no uncertainty about it.