A Guide to the Power of Daedric Flames, Volume 3, by Kalsius Malik
Similar to how we use normal fire to keep warm and cook food back in Nirn, this strange blue flame—which is icy to the touch—will charge various Daedric devices and incantations with power. I believe they use it as a fuel to bring their magical creations to life.
The secret is in the blue braziers. With just a touch, the power flows from the brazier into the individual like a curious wisp following an interesting target. You have to utilize and harness the power quickly, for the flame loses potency almost immediately upon being removed from its source.
For users to harness this power in any way, they need to be quick before the flame simply flickers and fades away.