The purpose of a constitution is to establish the foundational principles and legal framework of a state, protecting the rights and liberties of its citizens. By outlining governmental structure, powers, and limitations, constitutions serve to constrain governmental authority and safeguard against abuses. They often enshrine fundamental rights such as freedom of speech, religion, and assembly, ensuring that the government respects individual freedoms. Constitutions also provide mechanisms for amendments and legal recourse, enabling the evolution of laws to adapt to changing societal values while maintaining stability within the political system.