Read the text and answer the following questions.

Two sick men were given the same room in a hospital. One man could sit up in his bed. His bed was next to the room's only window. The other man spent all his time lying on his bed opposite the window. The men talked for hours almost every day. They talked about their wives and children, their homes, their jobs and almost about everything.

Every afternoon the man in the bed by the window would sit up and talk to his roommate about all the things he could see outside the window. The man on the other bed eagerly waited for this speaking and listening time. His friend's vivid descriptions of passing things seen through the window inspired him to live.

The window overlooked a park with a lovely lake. Ducks and swans played on the water, while children floated their paper boats. A wonderful view of the skyline could be seen in the distance.

The man by the window told his friend all this in detail. The listener would close his eyes and see everything in his mind's eye.

Days and weeks passed. One morning the doctor came to the room on his daily round. He found the lifeless body of the man by the window. He died peacefully in his sleep. The doctor made all the arrangements to take the body away.

The sad friend wanted to move to the empty bed next to the window. The doctor allowed him.

On his new bed the man painfully propped himself up. He was very excited. He slowly looked through the window to see the real world outside. What did he see? The window just faced a blank wall. He asked the doctor, "Doctor, I see nothing but a blank wall. How could my friend describe so many wonderful things outside the window?"

The doctor replied, "Did he? The man was completely blind!"