The fear of the Lord is the beginning of knowledge. Proverbs 1:7
Bokeh is the blur, or the aesthetic quality of the blur, in out-of-focus areas of an image, or "the way the lens renders out-of-focus points of light." -Wikipedia
I have been experimenting with this, particularly as it applies to our bright, clear light in the West. I am not interested in photographing night-lights (one of the main uses of bokeh), but rather capturing the colors and light of nature. When you remove the detail of the picture, you are left with nothing but color and light, which gives you but a mere impression of what was there. Like impressionism, it is more concerned with the impression of a something then the actual true-to-life representation.
Most people use bokeh to set off the main subject of the picture, but blurring the background. Sometimes, it can be used to really add to the atmosphere and 'place' the subject in its surroundings, without distracting from it.
I am experimenting with using bokeh as the main subject matter, portrayed as color, light and shapes, rather then detail and precision.
Early spring leaves...
And this one is my favorite
I really like this one. It is more traditional; bokeh is not the subject, but rather the background. But I just had to include it anyway. :D