In the novel "Middlesex" by Jeffrey Eugenides, Desdemona frequently observes the shadows of her Siamese cat on a white lime wall during the evenings. This recurring sight reflects her attachment and the sense of companionship she feels with her pet.
However, each time she encounters the shadow without the actual cat present, Desdemona experiences a deep sense of loss, as if a part of her has been severed. This poignant imagery emphasizes the emotional connection she has with the cat, suggesting that her solitude intensifies when faced with its absence.