According to historical records, Emperor Shizong (reigned 954-959 AD) of China's Later Zhou Dynasty once described the ideal shade of celeste blue porcelain glaze as "the color that springs forth when the rains have passed, the clouds have broken, and the sun shines through."
根據文獻記載，五代十國中最有建樹的英主──「後周」世宗柴榮（954-959 在位）曾云：「雨過天青雲破處，者般顏色作將來」，用以形容理想的青瓷釉色。