I think this paragraph encapsulates, to the core, and exemplifies all that is "good" in humans. You went over with the intentions of doing good, helping those less fortunate than you, and you did that...but, you likely came back having "received" more than you gave and, YES, that change and bigger vision you speak of will continue to grow through you going forward. So, your "mission trip" only began in Belize but will have limitless effects and will never really end. "Good" on you!!