Literature Reference: A diamond awl pierces jade, a fine iron sword cuts hair. Source from 'Fenghe Zhexidafu Li Deyu Shumeng Sishi Yun Dafu Ben Ti Yan Zeng Yu Meng Zhong Shi Fu Yi Ji Yi Er Liao You Gu Jin Suo He Zhe Yi Zhi Shu Han Yuan Jiu You Er Yi Ci Ben Yun'.
金: Gold, the precious metal. Symbolizes the prosperity of wealth and abundance.
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: Vajra symbolizes strength, sharpness, and indestructibility.