Literature Reference: 磬疎闻启梵，钟息见安禅。—— 《题法华寺五言二十韵》 The sound of the chime resonates, awakening the chant; the bell's silence reveals tranquil meditation. Source from 'The Twenty Verses on the Fahua Temple'.
磬: Emptiness, fulfillment.
疎: "Shu", synonymous with "sparse".
Meaning: Qing Shu symbolizes purity and tranquility, representing a peaceful mind and meditative serenity.