Final answer:
The main purpose of Patrick Henry's speech is to persuade the colonists to enter into war against Britain. The 'storm' he predicts refers to the war with Britain.
Step-by-step explanation:
The main purpose of Patrick Henry's speech is to persuade the colonists to enter into war against Britain. He used passionate and persuasive language to ignite a sense of urgency and patriotism among the colonists. The 'storm' that Henry predicts is approaching refers to the war with Britain, emphasizing the inevitable conflict and urging the colonists to take action.
Learn more about Patrick Henry's speech and the American Revolution