SHAY: Timetwister?
HARRISON: Yes, my boy. I assume you want an explanation?
SHAY: If you would be so kind...
HARRISON: Have you ever looked back at something, and wished you could change it?
SHAY: Sure, everybody has.
HARRISON: Well, I'm one of the angels that does the changing.
SHAY: Wait a minute, no one can change the past.
HARRISON: You're incorrect about that, it happens all the time.
SHAY: How can that be possible?
HARRISON: Look at who you're talking to.
SHAY: Why would God want to change the past?
HARRISON: To Him, the past isn't the past, its something completely different altogether.
SHAY: Which would be 7?
HARRISON: Opportunity.
SHAY: Opportunity to 7?
HARRISON: ...love, my boy. Opportunity to love.
SHAY: Why would changing the past make us love God any more than we already do?
HARRISON: That's not the purpose. You missed my point. It’s an opportunity for HIM to love, not for YOU humans to be more affectionate towards him. Timetwisting is for Him, not you.
SHAY: So I guess this is a pretty important job, seeing as how it’s not even perceptible to humans.
HARRISON: Most of our jobs aren't, dear boy. But they are needed all the same.
SHAY: If you say so.