The Darkness reference article from the English Wikipedia on 24-Jul-2004
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Darkness

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Darkness is the absence of light, and also the lack of knowledge (ignorance). It is also associated with mystery and with unknown things. In Western tradition, darkness is also associated with evil, evil entities (such as demons or Satan), and Hell or the underworld. The love of darkness is called lygophilia.

There are several other meanings of darkness: