Soulfire is the ability to use the soul to enhance magic, affiliated with heaven. The Fallen Angels refer to it as the fire of creation, and it is the antithesis of Hellfire.
Description
Soulfire consumes part of the user's soul to enhance his magic. The soul regenerates over time, or through acts which are "good for the soul", but will kill the user if it is completely drained.(reference needed)
Soulfire gives structure to magic; it could theoretically allow a path to be made into deeper Faerie by stabilising the gateway. While angels use it, it is unknown if they use it on its own or bound to a form of magic.(reference needed)
Despite being similar to Hellfire in enhancing magic, there is a key difference: Hellfire gives power to the means; Soulfire gives power to the intention, giving the user much finer control on the spell.(reference needed)
In the series
Small Favor
- Main article: Small Favor
In Small Favor, Harry Dresden receives soulfire from the archangel Uriel, after he has lost Hellfire, when Lash was erased from his mind at the end of White Night. Soulfire manifests as a silvery ghost of Harry's force spell, and a blue-white supercharged version of his fire blast. Bob tels Dresden about its use of the human soul.(reference needed)
Turn Coat
- Main article: Turn Coat
In Turn Coat, Harry Dresden uses it to boost his Sanctum invocation and to strengthen the garrote he used on Shagnasty the Naagloshii.(reference needed)
Changes
- Main article: Changes
In Changes Harry Dresden uses it to create very realistic animated illusions of his companions to a greater detail than before.(reference needed)
Cold Days
- Main article: Cold Days
In Cold Days Harry Dresden understands that soulfire is fueled from the user's entire being - not only from the 'soul' but the amalgamation of what makes the Self (a product of every decision made, every thought we have, every action done), and that it is the user's entire being and identity that fuels it.(reference needed)