What was the goal of the ruler of the Byzantine Empire under Justinian?

The ruler of the Eastern Roman Empire, Justinian, set himself the task of restoring the state and strengthening it. Justinian sought to expand his spheres of influence to nearby territories and unite them under one rule. He annexed the lands of the Visigoths, Franks and other states and tribes. His main preference was the dominance of unity in everything. His centralized state needed a single religion, a single authority, and a single border. Under Justinian, a large-scale organization of society was carried out.