"World in harmony" is the translation of the Sanskrit word "mandala". Mandalas are drawings in three-dimensional forms created from colored sand. In Tibetan, this art is called dul-tson-kyil-khor which means “mandala of colored powders.”
At Pema Ts'al many monks worked many hours to create this particular mandala.They used an illustration for their guide. The sand granules are then applied using small tubes, funnels, and scrapers.
...mandala in Vajrayana Buddhism usually depicts a landscape of the "Buddha-land", or the enlightened vision of a Buddha, which inevitably represents the nature of experience and the intricacies of both the enlightened and confused mind, or "a microcosm representing various divine powers at work in the universe." http://en.wikipedia.org/wiki/Mandala