“Buddha” is a medicine for emotional people; if you have no disease, you should
not take medicine. When medicine and disease are both dissolved, it is like pure water;
buddhahood is like a sweet herb mixed in the water, or like honey mixed in the water,
most sweet and delicious. And yet the pure water itself is not affected.
Thomas Cleary, The Five Houses Of Zen, p.9
Its light penetrates everywhere and engulfs everything, so why does it not know itself?