Consider a light source (flashlight) pointed to a wall, it would be symmetrical (uniform) But in case a crystal gets into the way, it won't be a uniform as a w

Consider a light source (flashlight) pointed to a wall, it would be symmetrical (uniform) But in case a crystal gets into the way, it won't be a uniform as a whole. Similarly an event happening all the time or in some frequency, would be disrupted by a time crystal. (changing the frequency)