The only scope of lucis fero was to estirpate the himan souls from the Earth, as a sign of the rebellion against God his not so called redeemer. The best way he found to keep that promise to himself was drinking blood.The human pulsating jugular awakened in him the excitement of an unsuspecting repressed past of follies that ethereal beings could accomplish. with the first blood beginning to shed the glory of a dark God inculcated in his viscers.