Literature Reference: The solitary light of the night hangs over the cold sand. Source from 'He Du Shijun Jiuhualou Jian Ji'.
冷: Calmness. When used in a person's name, it metaphorically signifies the ability to think with composure and avoid impulsiveness in the face of challenges.
沙: Sand, grains of sand.
Meaning: Cold sand symbolizes the serene and lonely night scene, representing depth, tranquility, and aloofness.