Answer:
The words, "We the People", would be considered very important because it's talking about everyone who lives in the United States. They are saying everyone as a union instead of everyone as a single individual, there uniting everyone as one, the people of the Untied States.
Step-by-step explanation:
When those people were writing the Constitution, they wanted everyone to be one and united as the people of the United States, not just a single individual, everyone united.