How does Tatyana Tolstaya use imagery in Night?

The imagery consists of a vivid fantasy life, and he delivers his story through a magical lens. Due to his mental illness, he is not grounded in reality. When Alexei sleeps, he exists in a world filled with strange plants and imaginary animals. As well, even when he is awake, Alexei sees wolves, lions, sea creatures, and other beings where there are people. The act of passing by another apartment building is filled with mystery for Alexei, and he believes its occupants are able to "fly like white doves, flitting from balcony to balcony."