Everything has a shape, a colour, a sound, a texture, and a fragrance. These are the outward appearances that separate one thing from another. Yet everything arises from that which has no shape, colour, sound, texture, or fragrance. If you understand this, and understand it fully, nothing can harm you or impede you. You live within limits that have no beginning and end; you breathe the original breath, and act without effort. In short, you are perfect.
Chuang Tzu, The Book of Chaung Tzu: 19