Answer:
The preamble to the Constitution is an introduction to the document. You can think of it like a book summary on the back of a book that shows you what you should expect from reading the full book.
The preamble states the purpose of the Constitution and the intention of the entire document full of laws. The preamble is not actually a law or a legal document, but it is used to make it clear what to expect in the Constitution. Namely, the preamble says that the Constitution aims to create laws around justice, peace, defense, welfare, liberty, and prosperity for a "more perfect" country for Americans.
Explanation: