Why is federalism important? (Why is it good for our government)

Federalism is one of the main ideas that make up the democratic government we know. This is because federalism is based on the existence of a diffuse central government that empowers all its members to achieve their goals embracing diversity.

The major importance of federalism to the US was the creation of a national government strong enough to exercise certain general powers, but not so powerful that it could threaten individual freedoms.