Armand Camhol discusses the significance of narra wood, locally known as haidu, which is considered one of the strongest and most valued materials used in creating bulul sculptures. Camhol explains the cultural importance of commissioning these carvings, a process that traditionally involves substantial offerings such as the butchering of multiple pigs and the sharing of rice wine. It also highlights the communal aspect of the ritual, where participants are provided food and drink throughout the ceremony.