The Optical Illusion of Venus

When you see a painting of a woman looking at her reflection in a mirror, you might assume she is gazing at herself. In reality, she is likely looking directly at you.

This phenomenon occurs because the mirror is angled to show her reflection to the viewer rather than the subject herself. If you can see her face in the glass, the laws of optics dictate that she must actually be looking at your position from the artist's perspective. It turns a private moment of vanity into an unintentional direct connection with the audience. This subtle trick has been used by masters for centuries to create a sense of intimacy.