What does we the people of the United States mean?

"We the People of the United States" is the opening phrase of the Preamble to the U.S. Constitution, signifying that the authority of the government derives from the citizens. It emphasizes the idea of collective sovereignty, indicating that the Constitution is established by and for the people. This phrase underscores the democratic principle that the government exists to serve the interests of its citizens, reflecting a commitment to unity and shared purpose.