Literature Reference: The treasure has its own nature, its essence and strength are unparalleled. Source from 'Li Duwei Gu Jian'.
精: The finest part of a person or thing, such as the elite or the essence.
刚: The word embodies the essence of resilience and fortitude. Masculinity is a quality that men are expected to embody, hence the character "刚" (Gang) is frequently used in male names.
Meaning: Essence and strength symbolize the pure and unyielding quality of perseverance.