We are living in an age of hurry and worry. Day and night, we are busy earning our livelihood. We are miles away from our friends and relatives. We have no time to visit them. But we always want to know about their welfare. So we wait for the postman eagerly.
Sometimes, we wait for him impatiently. The postman brings us news from our friends and relatives. He may sometimes being sad news but we still wait for him.
Whenever there is a knock at the door, we rush to open the door. We want to see whether the person knockin is the postman. When our friend or relative is sick we wait for the postman. We want to know the welfare of the person. Everyone of us waits for the postman whether he brings something for us or not.