There is a rumor in the world that the human heart is like a mirror. The inside and outside of the mirror are not the same. Therefore, the human heart is also good and evil. It cannot be seen through or touched. It seems clear and clear without ripples. Sometimes, it will illuminate all things in the world, with long-lasting grievances and resentments. Sometimes, it will just be the dust-covered self. It seems to be as solid as a rock, but in fact it is fragile and fragile. It must be taken care of with care and properly stored. ——In fact, it has nothing to do with the main text (maybe it is a weekly update)