When the setting sun is the most beautiful, it is always near dusk.
There are many things in the world like this, especially some brilliant and wonderful things.
Therefore, you need not feel sad nor regret. Even if you go to the rivers and lakes to catch up with the spring, you do not have to keep it.
Because this is life. There are some things you can't stay without.
You must learn to live with its ruthlessness before you can enjoy its gentleness.