Look at things comprehensively. When you are happy, don't forget to look at disasters and happiness around you optimistically when you are frustrated. They coexist all the time. It can also be understood that everything depends on human effort to motivate yourself. There is no absolute good or bad, but it depends on whether you can reverse Gan Kun.
In fact, a blessing in disguise means a blessing in disguise, which serves to explain Laozi's concept of "blessing depends on misfortune, and blessing depends on misfortune":
Once upon a time, an old man lived in the border area adjacent to the Hu people, and passers-by all respectfully called him "Saiweng". Sai Weng is philosophical by nature and has a different way of dealing with people. One day, for some reason, Saiweng's horse got lost while grazing and couldn't come back. After the neighbors learned the news, they all expressed regret. However, Sai Weng didn't think so. Instead, he comforted everyone with relief: "Losing the horse is of course a bad thing, but who knows if it will bring good results?" Sure enough, a few months later, the lost old horse ran back from the Great Wall and brought back a fine horse rode by the conference semifinals. So, the neighbors came together to congratulate Sai Weng and praised him for his foresight when he lost his horse. However, at this time, Sai Weng was worried and said, "Alas, who knows if this incident will bring me disaster?" Saiweng's family added a fine horse that the Hu people rode, which made his son happy, so he rode for a ride every day and enjoyed it. Finally, one day, my son got carried away with pride and fell off the galloping horse, hurting his leg and causing lifelong disability. After hearing the news, the kind neighbors rushed to offer their condolences, but Sai Weng still said, "Who knows if it will bring good results?" Another year passed, the conference semifinals invaded the Central Plains on a large scale, and the frontier situation suddenly became tight. All the able-bodied young people were recruited as soldiers, and nine times out of ten they were killed on the battlefield. Because Sai Weng's son is lame, he is exempt from military service, and the father and son have also been able to avoid the disaster in where will you go. This idiom tells us that good and bad things in the world are not absolute. Under certain conditions, bad things can lead to good results, and good things may also lead to bad results.