When I identify stuff, I sometimes get those attributes:

It has a chilling aura of evil
It seems to be dark and cloaked in shadows.
It has been imbued with a blessing.
It shines with a pure, goodly aura.

I'm wondering what those means... does an evil character benefits from using gear with a chilling of evil, or cloaked in shadows?

Does a goodie benefits from using goodly aura stuff?

The blessing confuses me because it is sometimes on evil stuff...

Anyone knows about it?
Thank you.