Envy, negative emotions and dislike are the notions usually associated with the Evil Eye throughout history. Although getting an amulet that represents the essence of the bad thought may seem counter-intuitive, generations of people in various cultures have thought of the Evil Eye itself to be absorbent and reflective.
Therefore, bad intentions aimed towards you are instantly set back and put into the hands of karma. It is an absorbent magnet for all things negative. Do not worry, the bad intention does not remain in the energetic space of the Evil Eye - it gets instantly reflected towards the person initiating the negative thought.