Literature Reference: 怀素身长五尺四，嚼汤诵呪吁可畏。—— 《怀素上人草书歌》 Huai Su, standing five feet four, chanting and reciting incantations, is awe-inspiring. Source from 'The Song of Huai Su, the Monk's Calligraphy'.
怀: Yearning and reminiscence, here signify family harmony and mutual care.
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.
Meaning: Huai Su signifies a heart of simplicity, pursuing naturalness and purity, often referring to noble character and artistic realm.