Cenaz is the sound K, like cat.
Anglo-Saxon Rune Poem (from ragweedforge.com)
The torch is known to every living man by its pale, bright flame;
it always burns where princes sit within.
Kenaz or Cen, is the torch. The torch of course is the most basic of portable light sources, a simple branch with a burning end that can be used to illuminate dark areas, and can travel with the person, unlike a bonfire which is stationary. It represents the casting of light and illumination, which can signify knowledge, inspiration or just the revelation of that which was hidden or concealed.
In this case, it is Kenaz reversed. It is darkness, and perhaps ignorance and lack of inspiration. The use of concealment and deception is present. Some might consider this a bad thing, but that really depends upon the question. Darkness does have its benefits and uses. Sometimes even knowledge may come in darkness. Often times, that is when knowledge comes. Darkness, silence and stillness are the modes that are often used when seeking knowledge and wisdom. It is in that mode that the knowledge comes, and only afterwards, when that revelation is acted upon does light come from it.