Fantasia is a manifestation of schizophrenia, which refers to the production of unjustified and unfounded or excessive thoughts about a thing, leading to one’s mental trance, and serious cases should receive treatment. In the complex life, sometimes people are in depression and suppression, want to escape, but inevitably overwhelmed by all the cruelty of reality, and can only silently endure the pain brought by life. Such people are often too shy to express their own heart, for fear of being laughed at by others, and even more afraid of being hurt. There is no effective way to relieve themselves, but only in their own hearts, unconsciously fantasize, thus causing the generation of fantasy disorder.