auxiliary view questions

i haven't been able to figure out what some of the stuff in the auxiliary view are. the line at the bottom that moves around and the series of bars of increasing size that light up seem to be completely random to me. could someone explain what these mean to me? thanks!

I tried asking the same question in this thread. Rob even popped in and said the magic word, "visual" (or was it "visuals"?), but Toby never showed up to explain it. Maybe it will work this time...

visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby visual visuals Toby

and a ProLux for good measure...

well, apparently it didn't work this time. i guess we may just never know the answer to this question. does anyone know the answer to this quesion? or are they really just completely random?