The term "shimmeringly" is a phrase that describes something shining brightly or with great clarity. It can also be used to describe something that has an immediate and noticeable visual impact, such as a beautiful flower or a dazzling star.
Shimmering is a term used in the field of art and design to describe the appearance or quality of something that appears bright or vividly colored. It can refer to various things such as colors, textures, light, and more, depending on the context. In this case, it could be referring to the shimmering effect created by the light upon a surface when it shines through a material or object with a reflective surface.