Is there a link between Yu-Gi-Oh! Cards and people's hearts (considering them as soul cards)?

Well i can see where you are coming from. But in cases this happens to many things. Like stuffed teddy bears, y mouse pads, Ect. And well my friend was doing well with his dragon deck, and then he put in baby dragon because he loved that card, and it would be funny to run. He has done way better in a duel.