What is what does piercing eyes mean?

The term "piercing eyes" is often used to describe eyes that are intense, focused, and seem to penetrate deeply into a person's psyche. It is usually used to describe someone whose gaze is strong and unyielding, and who seems to have the ability to see right through people or situations. This term may suggest that the person with piercing eyes is very perceptive, sharp, or even intimidating. In some cases, the term may also be used to describe eyes that are bright or sparkling, adding to their intense and captivating effect.