— You're here to corrupt one of my brightest and best.
— You know what I'm offering. You have to let them decide for themselves.
— Not just money. You remember. It's the chance to build cathedrals, entire cities. Things that never existed, things that couldn't exist in the real world.
— So you want me to let someone else follow you into your fantasy.
I can't get the point of the last sentence. How can let someone else follow you into your fantasy can be bounded to the context that's appeared? What can be mean fantasy here?