The "Castle Peak" in this story is a visionary and hardworking person. After his father died, he shared this mountain forest with his brother. The younger brother was assigned to the east slope with a smaller tree and the younger brother was assigned to the west slope with a better tree.
My brother Qingshan cut down some trees, bought new saplings to plant, raised sheep on the mountains and planted crops in places suitable for farming. I made very little money in the first two years, but after a few years, the trees on the slope have grown taller, and there are more and more sheep, and the crops have been harvested well. Qingshan saved a sum of money.
The situation on my brother's side is completely opposite to this one. At first, Hongshan made a lot of money, but later, when the trees were cut down, he lost his income and had to live on his laurels, making life more and more difficult.
Therefore, as long as there are green hills, there is no fear of burning firewood. This story tells people that as long as they have vision and work hard, they can live a good life. This is the meaning of "staying in the green hills".