What does Feng Tang mean by "the impossible"?

Feng Tang's "Can be met but not sought" expresses the following contents:

1. The author thinks it is rare for him to plant a yard full of trees in Houhai, Beijing.

2. Carving and processing of Xia jade. Because it is said that the use of jade originated in Shang and Zhou Dynasties, and before that, the jade in Xia Dynasty was only used as a tool like ordinary stones. Therefore, if you can meet the jade processed in the Xia Dynasty, it is a small probability. If such jade can be dug up today, it will be priceless.

3. Clouds at this time. Once I miss that charming light cloud, I may never see another one exactly the same in my life, and I won't be in the mood at this moment.

You are over twenty years old. What is really hard to meet is when youth is gone forever.

"What can be met but not sought" is included in Hundred Poems of Fengtang, with four sentences * * *. The specific original text is as follows:

There is a yard with trees in Houhai, jade with works in Xia Dynasty, then the cloud, you in your twenties.

The extended message "what can be met but not sought" comes from "100 poems of abundant Tang poetry", which, as always, is pungent in style and direct in language. Poetry is limited in space, and Feng Tang expressed his intuitive attitude towards life and love in a few words.

The kind of yard with trees in Beijing Houhai is naturally rare. Once you miss the cloud at this moment, you will never even see another flower exactly like it in your life, nor will it be exactly like this moment. When you are in your twenties, you can meet the youth in your twenties, but you can't get the time that is gone forever.

The use of jade began in the Shang and Zhou Dynasties, when the jade craft was exquisite, which could be called work. The Xia Dynasty regarded jade as a tool for productive labor, so the jade with work in the Xia Dynasty should refer to something that was particularly cherished, and the author may refer to people who were particularly cherished here.

We are in our twenties, confused and excited, running on the road. The short journey is coming to an end. When it rains, we will stay and leave no one, but I am just a passer-by, and maybe I will never come here again. Everything here will become unpredictable, nothing will be left, only shallow memories will be taken away. Where we came from, we have to go back eventually. This period has arrived!

References:

Baidu Encyclopedia-Feng Tang Poems 100