Why did divination become especially important in Etruscan state religion?

Divination was central to Etruscan state religion because the Etruscans believed that the universe was controlled by gods who manifested their will through every aspect of the natural world and human creation. They viewed human life as a small element within a cosmos where heaven reflected Earth, and macrocosm echoed microcosm.1

This belief system, known as the Etrusca disciplina, held that deities communicated their intentions through natural phenomena, such as lightning, the flight of birds, and the entrails of sacrificial animals. Because the Etruscans believed that public and private actions of importance should only be undertaken after consulting the gods, divination became a vital tool for governance.21

The most significant form of this practice was haruspicy, or the study of animal viscera, performed by haruspices. When signs were negative or threatening, these experts were required to prescribe complex ceremonies to appease the gods or provide protection. Consequently, divination was not merely a ritual but a necessary administrative function to ensure that all state actions remained in harmony with the divine will.21