Answer:
Both empires had a strong link with their religions.
Step-by-step explanation:
The state’s use of religion has great importance in the Byzantine and Sasanid Empires because the religion is the basis for both empires. The relationship of church and the government was very strong in the Byzantine empire, the people of Byzantine empire considered his king not only the leader but as the living representative of God. The Sasanid Empire also has a strong relationship with their religion and give a great importance to their religion in every aspect of their government and military. Zoroastrianism became the state religion of Sasanid Empire.