Caputa came to conclusions, which he shared with the readers of the scientific edition of «Perception». Of course, there is nothing supernatural in mirror distortions. The effect of a stranger in the mirror is no more than the optical illusion, caused by a long look at one point. Our visual system is compelled to recognize the same image again and again, but it begins to interpret it differently, and the accessing imagination creates a fear that suppresses common sense.
If you turn off the light and take the candle in hand, the situation will aggravate: the quivering fire makes the reflection pulsate and creates frightening shadows in the background. Suffice it to recall the popular ancestor’s fortune-telling for a betrothed: the girl should sit still in the dark in front of a mirror in the flame of a single candle until the face of her future husband appears in the reflection. The «betrothed» often came thanks to a vivid imagination which was warmed by tales about the devilish nature of mirrors.