Mental patients are defined by Baidu Encyclopedia as people who have varying degrees of impairments in perception, thinking, attention, memory, emotion, behavior, will, intelligence, and consciousness, and who may harm themselves or disrupt social order. We cannot accurately define the causes of mental abnormalities in mental patients, nor can we predict them. What will be their next move, but what we can know is that in their world, their actions are reasonable and logical. They do not need the understanding and care of others. In other words, they will not need others and never feel lonely. Isn't this the most ideal state for people?