Literature Reference: 日落寒云起，惊沙被原隰。——《相和歌辞 饮马长城窟行》 As the sun sets and cold clouds rise, startled sands cover the plains and lowlands. Source from 'Xianghe Geci: Drinking Horse at the Great Wall Cave'.
惊: Startled, yet pleasantly surprised.
沙: Sand, grains of sand.
Meaning: The startled sands signify magnificence and shock amidst the winds, symbolizing perseverance and fearlessness.