A constitution serves as the foundational legal document in a political system, establishing the framework for governance, the distribution of powers, and the rights of citizens. It outlines the structure of government, the procedures for lawmaking, and the principles of justice. Without a constitution, there would be no agreed-upon rules to govern the state or protect individual liberties, potentially leading to tyranny or anarchy. Furthermore, a constitution can promote stability by providing a mechanism for legal challenge and amendment in response to changing societal needs.