Happiness begets sorrow. Ji Zang is fierce. He grew up with Yu Defu and Lu Qiang. He bemoaned his bad luck and made great efforts in middle age. Bitter first, then sweet, then bitter, if you can keep it, you won't fail. Happiness in the first half, misfortune in the second half; Happiness in the second half of life is misfortune in the first half. You must enjoy the blessings of nature. Happiness reaches middle age, and then there may be some minor twists and turns. If you encounter bad luck in the first half of your life, it may become auspicious in the second half. (Ping), good or bad luck is miserable, so you have to enjoy the inherent blessings, be happy until middle age, and then be unlucky and lament. If you have bad luck in the first half of your life, it may become auspicious in the second half.