Frank is a genius, but in the eyes of others, he is a freak. Not being understood makes him feel lonely, but loneliness is not what makes him feel moving. More importantly, he has love. Even if he feels lonely, he still loves everything around him. It's just that he still has a desire, a desire to be loved, which is understandable to ordinary people, but to him, such a desire is not allowed. He clearly understood this, so he put on a protective hood, closed his heart, and lived alone and freely in his own world. It's just that Jon's appearance gave him hope and made him look forward to it again. Instead, he fell into pain and struggle, becoming less and less like himself. At the end of the film, Frank took off his hood and let go of the desire that disturbed his heart. The only constant is that he still loves everything. Because he knows that all he needs is to love. "There is only one Frank in the world, there is only one." There is only one me in the world, and there is only one you. The film reminded me of the line, "If you like weirdos, I'm actually pretty."
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