The luminous people are known for their songs which probably sound wonderful if you are one of them, but to human ears those little voices are almost insufferable - high-pitched, fast and annoying. Humans therefor capture the little buggers an use them as free light sources. The trapped fairies stop singing and their silent sobs are heard by noone. Until one fierce and talented fairy finds out how to break free...
This project has been presented on the pocketwizard blog in much detail for whomever is interested: http://blog.pocketwizard.com/2013/10/john-flurys-deliverance-luminous-pe...
really nice work!