And now, my friends, we have a duty here to do. We must sterilize this earth, so sacred of holy memories, that he has brought from a far distant land for such fell use. He has chosen this earth because it has been holy. Thus we defeat him with his own weapon, for we make it more holy still. It was sanctified to such use of man, now we sanctify it to God.
– Bram Stoker
Dracula, Chapter 22. Van Helsing produces the consecrated Eucharistic host to render the boxes of soil at Carfax uninhabitable for Dracula. He uses the power of Christianity to fight the supernatural powers of Dracula. Carfax is the estate just north of London purchased by Dracula, from which he launched his attacks on Lucy, Mina and Renfield.