What distinguishes miracles from normal events is the speed with which they occur. Miracles are never outside the Divine Laws and no Divine Laws are ever broken when they are performed. Events which normally would have taken longer are made to occur at the present time due to concentrated power. There is therefore nothing arbitrary about miracles.
If we as human beings could unfold our spiritual powers, we would also be in a position to perform some miracles. These miracles, however, would be different from the miracles of Jesus because Jesus worked with an entirely different power which is in God. We as human spirits are only able to work with spiritual power.