Sometimes the best image comes at the end, after one thing leading to another. It's a progression, a process of discovery, best observed when the outcome is not assured, when too many random factors come into play.
The shapes I found in this image bring to mind two figures engaged in conversation. Why we evolved the imagination to make sense of random shapes perhaps lies somewhere in our distant past, but now we use this ability to produce art. Images of one thing that make sense of another.
Extra: Light Painting.