Sand painting is a unique Tantric Buddhist art of patience and a symbol of the impermanence of life. The artists, over the course of a day, draw an outline, which they'll meticulously fill in with colored sand. The result is a two-dimensional depiction of an imaginary palace filled with deities, symbols or objects representing an aspect of wisdom or a reminder of a guiding principle. Shortly after the mandala is completed, it will be swept away. Half the sand then will be given away in vials to visitors, and the other half is to be scattered in a free-flowing body of water to disperse the healing energies of the mandala.
It's worth checking out. However, those who prefer spontaneously speaking in tongues as a sure sign of righteousness should probably stay home in front of the television.