Navajo weaving Yei bi Chai by Helen Woody is surrounded by a stunning black, white and grey Teec Nos Pos border. The Yébîchai weaving is a visual interpretation of the ceremony of Night Chant Way, which covers nine days of performance in the Navajo culture. This is a combination of both religious and medical observances. The myth characters personified in this rite are termed Yébîchai, Grandfather or Paternal Gods. Measures 29.5 by 50 inches.