Two tigers, one living in a cage and one living in the wild. The tiger in the cage envies the freedom of the tiger in the wild, and the tiger in the wild envies the comfort of the tiger in the cage. They decided to switch identities and were very happy at first. But soon, both tigers died. One died of hunger, the other died of depression. Many times, people turn a blind eye to their own happiness, and think that the happiness of others is dazzling. In fact, what you have is exactly what others envy!