All things under heaven have their visible and invisible components. The visible is their external appearance, their yang. The invisible is their inner image or ying. Ying and yang together constitute the dao. Just as a dragon t streaking across the sky. if it were to reveal its entire aspect, without aura or prolongation, what mystery would shroud it? Therefore, there is always a dragon behind the clouds. Thrusting ahead of wind and rain, it hurls itself forward in bounds and whirls back on itself majestically. The moment its scales dazzle you, you have lost your chance to see its tail. No matter how wide your eyes open, you will never see it in its entirety. It is through this double aspect of the visible-invisible that the dragon exerts it power of infinite fascination… Accordingly, the landscape that fascinates the painter must have an invisible as well as a visible component. –Bu Yantu, “Emptiness and Fullness”

Mallorca, 2002