People often think that dolls have spirituality or even souls. In fact, it's just the opposite. The doll has a body, but only an empty shell. It may look at you from the cabinet with blank eyes on a night when thin clouds cover the crescent moon, but it cannot reflect any emotion.
If the doll has a soul, there is only one possibility - a blank body meets a soul that has forgotten its home. The soul should be as simple as a blank sheet of paper. After wandering for too long, it forgot its origin, name, and long-cherished wishes. There was only one emotion left that allowed it to linger in the world, and then it stopped among the dolls. So the soul's emotions became the doll's emotions; the doll's body also became the soul's body. The body began to move driven by emotions, and the empty and dull eyes also flickered with light.
Such dolls are called "puppet" in the world.