A while ago I mentioned that are ways to extend the meaning of a picture beyond its obvious content. In providing certain clues, which I called “trigger information”, the artist hopes that the viewers mind will do the rest of the work by unfolding new layers of meaning to the picture. Symbols are one of the better known types of such trigger information. Some of them are so strong that we quite automatically expand their underlying meaning in our mind. In the Western world, at least, the cross as symbol for Christianity has such an effect. While, therefore, symbols can be incredibly powerful, there are problems, too.
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