Five is one of the number cards. It represents creation by design -- creativity, technology, intellegence. Five is the number of fingers on a hand, and (probably because of this) is one of the numbers of practical mathematics. By this I mean that when someone really uses mathematics for some project, the number five shows up more than the others. Five and ten are on the list because of the decimal system, and twelve and thirty-six are on the list for more fundamental reasons. In any case, five represents all types of creation and understanding by people. The symbol on the Five card is meant to represent the impulse to organize, and understand, and arrange at its simplest.
Creation by design has another face. Arthur C. Clarke touched on it when he made his remark that sufficiently advanced technology is indistinguishable from magic. The Taoists also touch on it. This other face is that the act of creation is not really understood, maybe it can't be understood. For everyone like Feynman who treats the world like an engineering problem to be understood there is someone like Einstein who treats the world as a mystery to be revealed. For Fuller there is Wright. For Rockwell there is Picasso. Creation is also the province of the magician. And so it has an alternate image like this: