When we were kids, you picked up a little paper and put it on a stick; and when you waved it back and forth, you understood the power of air underneath the wings. In that way, a child begins to understand abstraction, poetry, metaphor, symbolism. You play with the materials you have and use your imagination to make them into something else. That what's so sad about having everything on a little screen - it's not physical and dimensional, and that seems backward.