剑: The term originally refers to an ancient weapon, characterized by a long double-edged blade with a ridge in the middle and a short hilt. Holding such a sharp tool symbolizes wielding great power, embodying decisiveness, resoluteness, and fortitude.

棱: The terms "棱台" (Lengtai) and "穆棱" (Muleng) describe someone who carries out tasks with proper form and manner, suggesting a person who is methodical and precise in their actions.