If you came from ancient times, what would you want to explore?
If you never died, what would you want to do?
I don't know if I'm alive,
I don't know if I will die,
I don't know if it exists,
But I want to leave a mark
——To existence
What is a mountain?
Earth and rocks on the ground
What is the sea?
The gathering place of hundreds of rivers
What are mountains and seas?
The title of the book is - "The Classic of Mountains and Seas"
Purpose: Opportunities are reserved for those who are prepared