In their animist religion, Pa Xay is the creator of the universe, heaven, earth, rivers, streams, rain, wind, human beings and death. The Brau have led a nomadic life for a long time. Generally their houses are built on stilts. According to custom, the Brau have their faces and bodies tattooed and their teeth filed. Women wear a lot of chains around their arms, ankles and necks.
Men often wear loincloths and women wear panniers.
All leave their upper torsos naked. Young men and women are free to choose their partners. The family of the young man propose marriage and hand wedding presents to the bride's family, but the wedding ceremony is organized by the bride's family. After marriage, the groom brings his wife and children home. It is customary that the dead person is brought outside the house and placed in a coffin made from a hollowed out tree-trunk.