It is the name for the superpowers or abilities possessed by ordinary people.
The Forbidden Ruins are owned by ordinary people, the Wang Ruins are above mortals and under the gods, and the Shen Ruins are exclusive to the gods. So I learned in my mental hospital that the ruins of the God-killing Ye Fan are the superpowers or abilities that ordinary people have.
Humans who own Forbidden Ruins will be enhanced in different aspects to varying degrees. According to the original text, there are no waste Forbidden Ruins, only unsuitable Forbidden Ruins. In the settings, there are distinctions between Forbidden Ruins, King Ruins, and Divine Ruins.