Teenager: "What is the meaning of our existence?"
Old man: "Guard."
Young man: "Why?"
Old man: "We have no right to choose, because behind you are billions of people."
Young man: "What if one day we all die in battle?"
Old man: "Then burn our souls to create a pure land for the world!"
The young man worked hard for a lifetime, solved the disasters of saints, destroyed demons, eliminated monsters, guarded the world, repaired thousands of tribulations, and overcame disasters. He was the only person who accumulated immortal merits and ascended to the throne in a lifetime.