Footnote: The colors (white and blue) used for the dance steps and whirl pieces were chosen because part of a flame contains those colors (e.g. just above the wick on a candle).
1-12-08 Postscript: Last night while looking at the piece from about 6' away, I had the weirdest experience. I saw it in 3D (especially from the dance steps inward)! I wasn't looking at the piece cross-eyed or with a stare, just looking at it in a regular way. Has that ever happened to anyone else with one of your pieces?