What does "You can't chase yesterday, but you can still do it tomorrow" mean?

It means let the past days pass! I hope it will bring good results in the future!

Similar to Li Bai's poem "Those who abandon me will not be able to keep yesterday's day; those who mess up my heart will be troubled today." The original poem is as follows:

Xuanzhou Xie Farewell to the School Secretary Shu Yun at the Pavilion

Tang Dynasty: Li Bai

Those who abandon me will not be able to stay the same as yesterday;

Those who disturb my heart will not be the same today. There are many worries in the day.

The long wind sends the autumn geese flying thousands of miles away, and you can enjoy this high-rise building.

The Penglai article is built with bones in mind, with small Xie in the middle and clear hair.

We are all full of joy and hope, and want to go up to the blue sky and see the bright moon.

Cut the knife to cut off the water, the water will flow more, and raise the cup to eliminate the sorrow and make it more sorrowful.

If life is not satisfactory in this world, the Ming Dynasty will be ruined.

Translation

The yesterday that left me is irretrievable. Today, I am confused and worried. The long wind blows away thousands of miles of autumn wild geese. Facing the beautiful scenery, you can enjoy the high-rise building. Mr. Xie's articles have a strong Jian'an style, and from time to time reveal the elegance of Xiao Xie's poetic style. You and I are full of super joy and want to go up to the sky and embrace the bright moon.

Using a knife to cut off the water flow, the water waves flow more smoothly; raising a glass to relieve the sorrow, the sorrow becomes more intense. In life, if you can't get what you want, it's better to board a small boat on the Yangtze River with your hair disheveled. Extended information

Appreciation

"Yesterday's day" and "today's day" refer to the many "yesterdays" that have abandoned me and the "todays" that have followed one after another. ". That is to say, every day I feel deeply that the sun and moon are no longer there, time is hard to stop, I am upset, and I feel sad, angry, and dejected. This not only contains the spiritual anguish of "hard work and endless rush of time", but also the poet's feelings about the dirty political reality.

His "worry" does not start from "today", nor is his "worry" limited to one end. It can be said that this is an artistic summary of his long-term political experiences and feelings. The depth, breadth and intensity of the worry and indignation reflect the increasing corruption of the government since Tianbao and the increasing personal embarrassment of Li Bai. The intense mental anguish caused by the sharp contradiction between ideal and reality finds a suitable form of expression here.

The beginning of the sky, the overlapping language (it said "abandon me", but also "can't stay"; it said "confused my mind", also said "many worries") , as well as the vigorous and eleven-character sentence pattern, all vividly show the poet's deep depression, intense sorrow and anger, chaotic mood, and emotional state that is about to explode and cannot be suppressed.