Why is it that we close our eyes when we do certain things -- like hug, kiss, pray, and cry? That's easy: It's because the most beautiful and exciting things in life are not seen, but felt with the heart . In other words, we find little need to see anything or anyone, for the intense emotions we experience come from deep within. Consider people who ride rollercoasters. At some point, they've closed their eyes just before a sharp turn or steep drop. Why? Because they become so consumed by their emotions -- fear and excitement among them -- that visuals seemingly take a back seat. In fact, many people find rollercoaster rides far more exciting when they close their eyes than when they keep them open throughout. I'm sure you've also noticed that many people -- perhaps including you -- close their eyes while eating scrumptious food, whether a cheese pizza or juicy steak. And there's no denying that a kiss on the lips doesn't feel as passionate i...