In Sanxingdui, it seems that the more artifacts were unearthed, the more questions were raised. Something invisible to the naked eye also caught attention. Silk proteins were found in one of the six newly discovered pits. Silk was probably originally only used in sacrificial rituals, not for clothing.  In addition, the life cycle of a silkworm starts with an egg and ends with a moth. For ancient Chinese, it was a magical process that must be explained by supernatural powers and sacred significance.