通幽洞微 洞若觀火 / tōng yōu dòng wēi dòng ruò guān huǒ /
Subtle and Profound Understanding;
Crystal clear.
Category:
One Stroke Calligraphy_Phrases 一筆字：佛教成語
References:
星雲大師全集【書法類】佛教成語 The Complete Works of Venerable Master Hsing Yun: Calligraphy-Phrases
