Explain what john adams meant when he sasid that the revolution "was in the minds of the people

John Adams was referring to how the real revolution, in his opinion, was the one in the mind of the colonists which turned them against the British and what they were doing in the colonies. People negatively influenced by British taxes, idealists, thinkers, and frontiersmen would be likely to support the revolution, even before Lexington, because they were either ideologically opposed to the British Empire's actions in the colonies and/or somehow lost out in terms of money, property, and/or opportunity because of the Empire's policies and actions.