Literature Reference: 哭向青云椎素臆。—— 《乐府古题序 梦上天》 Crying towards the azure sky, pounding my pure heart. Source from 'Ancient Titles of Yuefu: Dreaming of Ascending to Heaven'.
素:
Simplicity and refinement. When used in names, it often signifies pure character and superior qualities, which are conducive to earning others' affection and trust.
臆: Subjective and unfounded.
Meaning: A pure and untainted heart, expressing sincere emotions and a clear spirit.