Aha. Here we go. Now it's time to whip out the beanstalk metaphor. She aligns both her hands, one above the other with space above it.

"Okay! So this is one plane," the lower left hand moves up and down, subtly, "and this is the other." The right hand also moves. "Between them is an invisible beanstalk, so the Digimon who live up here -- that's me, and the other Olympus XII -- can climb on down easily to the lower plane. You can't reach it by flying, or by jumping, it's gotta be by special pathways, codes-- like the beanstalk!"

Then, her hands split, the lower one going sharply left, the right one to the right.

"So when all the worlds started colliding, it threw everything outta whack! That beanstalk doesn't line up anymore, so getting from one plane to the other is wicked tough. Does that make any more sense?"