ونبين بالمقالة الخامسة مواضع الخيالات وهي الصور التي ترى في الأجسام الصقيلة
In the fifth book we show the places of the images, which are the forms seen in polished bodies.
Kitāb al-Manāẓir, the plan of the work. Book V fixes the place of the image on the perpendicular behind the mirror.
- Fog a bathroom mirror and trace your face on it with a finger. Is the outline the size of your face?
- Step back and trace it again. Did the outline change?
- Your eyes were sure about the size. What else do they work out without telling you?
Pick one. That is the first session.