The rectangular, diagonally divided national flag of Bhutan shows a white dragon in its center. The upper, yellow part of the flag represents the king's secular power, while the lower, orange part represents Buddhism. The dragon, whose white color symbolizes purity, represents the land of Bhutan, which is called Dzongkha Druk Yul, "Land of the Thunder Dragon," in the local language. The jewels in the claws of the dragon represent wealth and the perfection of the country.
The state religion, to which about 72 percent of the population adheres, is the tantric form of Mahayana Buddhism. Buddhism is omnipresent in Bhutan. Thus, religion, tradition and ancestral customs largely determine Bhutanese etiquette. Its most important features are respect for the faithful and for all religious institutions, as well as wearing of the national dress.