Why put bronze ancestors in Xi's stone tomb?

Sorry, I don't know why I put the bronze ancestors in the stone tomb, but I can give you some information about the bronze ancestors.

Bronze ancestors were sacrificial vessels of ancient people. According to the analysis of archaeological data, the bronze ancestor appeared in the Yin and Shang dynasties, and the surface of the bronze ancestor in the Shang dynasty was male-rooted. From the middle and late Spring and Autumn Period to the early Warring States Period, the surface of bronze ancestors was often decorated with grain patterns, in addition to moire patterns, mussel patterns and bird patterns. The cross section of copper ancestors in Han Dynasty is hexagonal, with decorative patterns on the surface.

In archaeology, the bronze ancestor is generally regarded as a sacrificial offering, and its function is equivalent to the ancestor statue of jade or bone. In the archaeological excavation of Yin Ruins in Anyang, the word "Zu" in bronze wares was unearthed, and its image was depicted as the shape of male roots, that is, the image of genitals. Therefore, the word "zu" is also interpreted as a symbol of reproductive worship.

As for why we put our bronze ancestors in stone tombs, we may need more in-depth research and understanding of the historical background to get the answer.