 Black symbolises death and darkness; yellow, God's blessing and power; white, the colour of flesh and bone symbolising purity; and red, the colour of blood symbolising human life.The pigments are sourced from common materials; black from soot; white from lime; red and yellow from colored earth; and "tuak" (palm wine) is used to strengthen the colors.Many of the motifs are identical to those on Dong Son kettle drums.