屋漏痕是一种自然之美屋漏,雨水顺墙下流,不会一泻而下,必将顺凹凸不平的墙面蜿蜒下注,形成极为顿挫有力的痕迹。故,“屋漏痕”用来形容书法用笔的效果,比喻用笔如破屋壁间之雨水漏痕,其形凝重自然。此提法,最早见于唐陆羽《释怀素与颜真卿论草书》:“素曰:‘吾观夏云多奇峰,辄常师之,其痛快处如飞鸟出林,惊蛇入草;又遇坼壁之路,一一自然。’真卿曰:‘何如屋漏痕?’素起,握公手曰:‘得之矣。’”又,南宋姜夔《续书谱》称: House leakage is a natural beauty of the house leaks, the rain flows down the wall, will not be a spill, will winding along the rugged wall bet, forming extremely frustrated traces. Therefore, “house leakage marks ” is used to describe the effect of calligraphy pen, metaphor pen, such as breaking the rain between the walls of the house leakage, its shape dignified and natural. This formulation, first seen in the Tang Lu Yu, “On the element and Yan Zhenqing on cursive scriptures”: “Supremacy said: ’I view the summer cloud odd Qifeng, often often division, the pain is good, such as birds flying forest, astonished into the grass;坼 wall of the road, one by one natural. ’Zhen Qing said:’ What room leakage marks? ’Su Qi, hold the captaincy said:’ get the carry. ’ ”Also, the Southern Song Jiang 夔“ continued spectrum ”said: