What does a small tree hole mean?

A small tree hole is a place to express feelings. The tree hole comes from the fairy tale "the emperor has donkey ears", which means a place where one can confide one's heart, a place where one can tell secrets without worrying about leaking them out. For us, having secrets will be very heavy, which will affect our health for a long time. Some secrets can't be told to others. At this time, find a tree hole to tell the secret, and people will become relaxed. Because the tree hole has no function of talking, it will never tell a secret. It belongs to network buzzwords. The scenery of this tree hole comes from a fairy tale "The Emperor has donkey ears", which tells that a king has a pair of donkey ears, and every year different hairdressers come to cut his hair, because everyone who cuts his donkey ears can't help telling others, and then he is killed by the king in a rage. On this day, a barber didn't want to be killed after cutting his hair. He tried not to tell anyone about it, but it was too difficult to keep the secret in his heart. He almost couldn't hold it, so he ran to the mountain and told it to a big tree hole. Suddenly feeling carefree, the barber saved his life.