Final answer:
Indiana's Constitution's major purposes are to establish justice and provide for the common defense, ensuring fair rule of law and state security.
Step-by-step explanation:
The two major purposes of Indiana's Constitution as stated in the Preamble are to establish justice and to provide for the common defense. Establishing justice refers to defining and upholding the rule of law, ensuring that justice is fairly administered throughout the state. Providing for the common defense involves ensuring that the new state could defend itself and its citizens from outside threats. These purposes align with the broader goals of the United States Constitution, which aims to serve the people, promote peace and prosperity, protect liberty, and promote justice.