A great phrase to exclaim when playing Legacy of Kain: Soul Reaver, or any other game that requires the user to consume souls. Also serves to intimidate or confuse normal people you may encounter everyday. May also be proceeded by taking a picture of the person (if they happen to be superstitous).
Good old Sam Brown over at explodingdog went to the trouble of making one of his wonderful cartoons illustrating the phrase. That can be found over here: http://www.explodingdog.com/october24/swallowsoul.html | 
