Rising, shifting, dancing in the night

Eureka! After going at the same subject again and again I finally distilled an abstract worth posting:


Processing was done to "hide" the original subject, although still with the basic tools from Lightroom.
What I like about this image: The patterns, the glowing bars of light, the rise from the dark, and the inherent organic movement.
Have a look at the largest size (just click through the image): there is a fine texture to it. And that might just give you a clue as to what was the source of these rising, shifting, dancing columns of light