Why must cry?

One day the teacher said to the students, "Why when someone is being angry, he will speak with strong voice or cry?" 

A student, after thinking for  a while giving the hand up, said, "Because  he has lost patience, so he cried."

"But ..." the teacher asked again, "the one whom he is talking with is in front of him. Why should cry? Couldn’t  he talk smoothly? " 

Almost all the students gave  reasons which were hoped to be correct  according to their consideration. 

However, none of the answers satisfying. 

Then the teacher said, "When two people are in anger, the distance between two hearts become very much long even though they are physically so close. 

Therefore, to achieve such a distance, they have to shout. 

However oddly, the louder they cry, they also become increasingly angry and the distance of the hearts between them also becomes longer. Therefore, they had to shout over louder again. " 

The teacher still continue, "Instead, what happens when two people love each other? Not only do they not cry, but also when they speak, the sound that came out of their mouth so fine and small. Even so soft, they can listen to so clearly. Why is that so? "The teacher said while  watching to the students. They seem to think deeply, but none provide answers. 

"Because their hearts are so close, their hearts are distanceless. Finally, even one word needs not be spoken. An eye’s view can  make them understand just what they want to. " 

The teachers still continue, "When you're in anger,  don’t  let your  heart to create distance. Moreover you should not say the words that bring the distance between you. Perhaps at that time, do not say the words may be the tactful way. Because time will help you. "