Ideally the members of these caste should only marry within their own caste, but this conventions is no longer strictly adhered to. A Balinese, then, live under two bonds. The first is determined by his descend and caste. The second is determined democratically by his village and banjar organization. Before Indonesia gained independence there was a third bond owed to a liege lord or prince, similar to feudal Europe.
Language is a complex matter in Bali, Basically there are two different Balinese languages.
The high language of the tri-wangsa is a Javanese court language which owes much of its derivation to Sanskrit. A Sudra should use the high language when speaking to a member of a higher castes, and he should be replied to in low language. Now a fourth language, the state language Bahasa Indonesia is taught in the school as a unifier for the modern Indonesian Republic. Over the centuries, the Balinese have had and strong sense of culture and an orderly and human society. They had assimilated two period of influence from java.