Why is the light in the mirror not dazzling?

According to Zhihu's inquiry, the light in the mirror is not dazzling, mainly because of the reflection of the mirror. When the light hits the mirror, it will be reflected back instead of penetrating the mirror and entering your eyes. So the light you see is reflected by the mirror, not directly by the light source. In addition, the material and surface treatment of the mirror will also affect the reflection and refraction of light. Some advanced mirrors will use coating technology to increase the reflection effect and reduce the penetration of light, thus reducing the glare.