Hills are hills. Water is water. Monks are monks. Laymen are laymen. But these mountains, these rivers, the whole world itself, together with sun, moon and stars -- not one of them exists outside your minds! The vast chiliocosm exists only within you, so where else can the various categories of phenomena possibly be found? Outside Mind, there is nothing. The green hills which everywhere meet your gaze and that void sky that you see glistening above the earth -- not a hairsbreadth of any of them exists outside the concepts you have formed for yourself! So it is that every single sight and sound is but the Buddha's Eye of Wisdom.
-Great Zen Master Huang-Po