"What is the Immortal Root?" A young man tilted his head, his face full of curiosity.
"What do you think? What is the root of the immortal?" The immortal stroked his beard, pretending to be profound.
The young man shook his head and looked at the immortal with blinking eyes.
The immortal smiled slightly and said: "Immortal, immortal, in the final analysis, you are a human being!"
"Do you understand?" The immortal stretched out a finger and tapped the young man's forehead.
The young man nodded as if he had some understanding, then shook his head.
The immortal laughed loudly: "It doesn't matter if you don't understand. You will understand after you listen to this story!"