汉代《述行赋》中写到:“穷变巧于台榭兮,民露处而寝湿。”湿在古代是指地低潮湿的意思。湿,甲骨文写作■,从水,仿佛地上铺着稻草,被水浸湿的样子。《庄子》有:“上漏下湿,匡坐而弦”的句子,描述百姓房屋漏雨,地面潮湿的艰苦境地。湿,因为有“氵”做偏旁,显而易见与水有密切关系,不论地面潮湿,还是天气阴湿,都给人冷冰冰的感觉。因为水是寒性 In the Han Dynasty, “Xing Xing Fu” wrote: “The poorer changes in the Terrace Xixi, people exposed and sleep wet.” “Moist in ancient times refers to the meaning of low humidity. Wet, Oracle writing ■, from the water, as if covered with straw on the ground, was wet with water look. ”Zhuangzi“ are: ”Leaving the wet, sitting and stringing“ sentence, describes the people housing leakage, the ground wet hard situation. Wet, because there are ”氵 " to do radical, it is obvious that there is a close relationship with the water, both wet ground or damp weather, give people a cold feeling. Because water is cold