"Loneliness is One's Pure Joy" is a new collection of essays personally reviewed by Lin Qingxuan in 2018. It selects 40 classic works and divides them into five chapters in a way that matches the author's life wisdom: live life with a joyful heart, create feelings with a normal heart, see the world with a pure heart, remove worries with a soft heart, and savor all kinds of flavors with a calm heart. Living with these five hearts can help people let go of their daily impetuousness and worries and gain inner peace and tranquility.