What does the constitution mean to us?

I have lot to say, but I can't so I just wrote a little bit of what I know about constitution.

The Constitution of the United States has endured for over two centuries. It remains the object of reverence for nearly all Americans and an object of admiration by peoples around the world. William Gladstone was right in 1878 when he described the U.S. Constitution as "the most wonderful work ever struck off at a given time by the brain and purpose of man."

Part of the reason for the Constitution's enduring strength is that it is the complement of the Declaration of Independence. The Declaration provided the philosophical basis for a government that exercises legitimate power by "the consent of the governed," and it defined the conditions of a free people, whose rights and liberty are derived from their Creator. The Constitution delineated the structure of government and the rules for its operation, consistent with the creed of human liberty proclaimed in the Declaration.

can you explain it better