The word "mandala" is from the classical Indian language of Sanskrit. Loosely translated to mean "circle," a mandala is far more than a simple shape. It represents wholeness, and can be seen as a model for the organizational structure of life itself--a cosmic diagram that reminds us of our relation to the infinite, the world that extends both beyond and within our bodies and minds. Sand Mandalas, popular in Tibetan Buddhist traditions, can take several weeks to build and only moments to sweep away. In a way mandala cakes also follow this creative-destructive ritual. Here's a look at 15 cakes that are almost too stunning to eat.