It was a doctrine of Paganism that there was a magical or necromantic influence in all its observances, in virtue of which a purifying change was effected upon the soul of the worshipper. This idea was the essence of Paganism. In the sacrifice, in the lustral water, in every ceremony of its ritual, there resided an invisible but potent power, which of itself renewed or transformed the man who did the rite, or in whose behalf it was done. This doctrine descended to Romanism.