That’s what eyes are, they say. And if we think about it, it is true. Without even noticing most of the time, eyes are very important to us. We get nervous when someone we talk to wears sunglasses and we can’t see their eyes. We consider it rude if someone does not look into our eyes when we talk. A lover looks deep into the eyes of their loved ones. And if someone makes us nervous, we are not able to look into their eyes.