Which poem does "Ephemera" come from?

Ephemera is written by Su Shi, a writer in the Song Dynasty.

Excerpt: My son and I were fishing in Zhu Jiang. We are friends of fish, shrimp and elk. We are in a boat, holding bottles for each other. It's a drop in the ocean to send a mayfly into the earth. Mourn a moment in my life and admire the infinity of the Yangtze River. Fly with the flying fairy, hold the bright moon, and grow up. I couldn't understand it at the moment, but I heard about it in Hengtai.

Besides, you and I are fishing and chopping wood in a small continent in the middle of the river, with fish and shrimp as partners and elk as friends. We drove this boat on the river, toasting each other, just like a mayfly in the vast world, as small as a millet in the sea. Alas, sighing that our life is only a short moment, we can't help but envy the endless Yangtze River. I want to travel around the world hand in hand with the gods and embrace the bright moon forever. Knowing that these can't be realized after all, I have to turn my regret into a flute and entrust it to the sad autumn wind. "

This paper not only retains the characteristics and charm of traditional poetry, but also absorbs the style and techniques of prose, breaking the shackles of the duality of sentence pattern and rhythm, and is more composed of prose, so that the article has both the profound charm of poetry and the penetrating power of prose. The style of prose makes the whole article feel depressed, such as "a thousand springs gushing"

Enlightenment of life

The phrase "flies are like a drop in the ocean" expresses the philosophy that life is short and things are impermanent. From the perspective of time, a person's life is only a very short moment between heaven and earth, as small as a ephemera. From the perspective of space, man is just a trivial grain of sand in the vast world. This sentence tells us to cherish time and not to waste precious life on meaningless things.