This is a three-minute animation about sleep, dreams and shadows. A dream is the reflection of desire and imagination, which is derived from a kind of self-motivation. A dream is like a virtual reality composed of memory fragments in the human brain and restored by violence. This work starts from one of the deepest dreams in my memory and explores people's inner fear of darkness. This rough and simple way of painting makes the transmission of feelings more direct. And the recurring objects in dreams are metaphorical expressions. Darkness hides too much invisible things for me. In the works, it is not only the black cloud, but also the shadow, and the black in the pupil. What we want to convey through this work is the primitive fear of this flowing darkness, which you and I share.