Final answer:
The Binu sanctuary with ideograms was primarily used for divination rituals, where heated carved bones or shells were used to predict events like harvests or military campaigns. The symbols evolved into a script for broader purposes, but divination remained a central use.
Step-by-step explanation:
The Binu sanctuary marked with ideograms was primarily used for divination rituals. Historically, the art and practice of divination involved carving characters onto turtle shells or animal bones, then applying heat to induce cracking which would then be interpreted as messages or predictions from the spiritual realm. This practice was central in predicting the outcomes of agricultural seasons, military endeavors, and other significant societal events. Over time, the characters evolved into a logographic script, capturing not only divinatory purposes but also serving for record-keeping, calendrical functions, and intergenerational communication of knowledge.
While there are references to other activities and ceremonies, such as agricultural practices, religious ceremonies, and other aspects of cultural life, the evidence most strongly supports divination rituals, especially when considering the strong historical association with oracle bones and logographic script being adapted for these purposes. This suggests that divination was a key practice within the Binu sanctuary. Symbols and imagery found in these sanctuaries, including animals and deities, had cosmic and cultural significance, further emphasizing their spiritual and divinatory nature.