The constitution is the central legal document of a state. It regulates the basic organizational structure of the state, the territorial structure of the state, the relationship with its constituent states and with other states, as well as the relationship with those subject to norms and their most important rights and obligations. The state powers constituted in this way are bound by the constitution as the supreme norm and their power over the norm is limited. The constitution-making power in democratic states comes from the people of the state. Constitutions usually also contain state tasks and objectives, these are often found in a preamble.