Objects of faith

Objects of faith are objects such as: Harry's pentacle necklace or Michael's cross, the Swords of the Cross are tokens of a person's belief which can help repel certain creatures of the Nevernever.

Description
Red and Black Court vampires are susceptible to faith magic and can be harmed or possibly killed if they touch an object which embodies a person's faith.

That Includes the Knights of the Cross themselves, like when Kelly Hamilton, a Red Court vampire, touches Michael in Grave Peril, she gets burned.

In Blood Rites, Harry says that his mother's pentacle represents the five forces of the universe—air, fire, water, earth, spirit energy—in a pattern of order contained within a circle of human thought and human will. He believes his magic is the force of life, of good, something meant to protect and preserve. That was belief enough to tap into the vast power of faith.

It is important to note that objects of faith do not necessarily have to be of Christian origin e.g. crosses and crucifixes. Any symbol which represents an individual's spiritual beliefs or ideals has power. Harry believes in the power of magic - the four elements controlled by the human spirit, represented by the pentacle - and thus his necklace is an object of faith.

Storm Front
In Storm Front, Dresden uses his pentacle necklace to repel the vampire Bianca St. Claire; with a small infusion of will, he pentacle begins to emit a glow that forces her away.

Grave Peril
In Grave Peril, both Michael Carpenter and Susan Rodriguez repel several Red Court vampires by using crosses.

Blood Rites
In Blood Rites, Harry Dresden's pentacle necklace is the symbol of what he believes in. When Black Court Vampires under Mavra's control attack him (and Thomas, Lara, Inari Raith) he calls on it's power, the power of his faith in what it stands for to take down the last vampire.

Individual objects of faith

 * Pentacle necklace
 * Swords of the Cross
 * Michael Carpenter's cross
 * The Blessed Cloth with silver emboidered crosses the Knights use to wrap the Denarian coins in.
 * Saint Mary of the Angels