We're in a glitzy store, admiring all the ornaments and enjoying the holiday smells. As my children wander down the aisles to observe the dazzling toys, my youngest cries out:
"Mommy! You have got to come see this! It's amazing! Come here right now!" She's calling out to me, weaving in and out of shoppers to pull me to her side. I think she's about to show me some toy--the kind with bells and whistles and a price tag we'll never be able to afford.
Instead, she drags me to. . . nothing. In silence, she points to the floor. There, on the store's carpet, imprinted with the markings of a thousand holiday shoppers' shoes, a rectangular rainbow appears from the perfect configuration of light coming through the window through some prism I cannot see.
"Look at it. Just look at it!" She moves her feet and hands within the rainbow, and I do the same. The light on our skin makes us blaze with a spectrum of colors. She's filled with wonder at this rainbow on the floor.
It cost me nothing.