Answer: Provide Foundation or reasoning behind the Constitution
Step-by-step explanation:
In including the Preamble, the writers of the Constitution of the United States of America, aim to show the reason why they saw it fit to establish such a Constitution and the purpose it is to serve.
As seen from the Preamble, the purpose was to form a more perfect Union where Justice, Domestic tranquillity, General welfare and Liberty would be principles that guided the United States.