The overall structure of Pausch's Last Lecture supports his purpose of enabling the childhood dreams of others because it allows him to earn his audience's attention and then relay details about his experiences and learned wisdom.
By engaging his audience from the beginning and sharing personal anecdotes and insights, Pausch effectively inspires and motivates others to pursue their own dreams. His storytelling approach helps to convey the importance of overcoming obstacles and the value of perseverance, making his message more resonant and impactful.