User blog comment:IamJakuhoRaikoben/Chapter 377 & 378: Imperial Wrath of the Heavenly Dragon & With Friends, Always, Review./@comment-4449950-20140329045401/@comment-4449950-20140329090313

No, for the caverns she said she had a vision of them all getting there; as in, she didn't sit there figuring out a bazillion different futures and map that out. Plus, again, an underground cavern is not as hard. Think about it:

Do I go left or right? I go right, future is bad. I go left, future is good. Do that every time you hit a fork in the path.

For the Magic circle it'd have to be more: Do I draw a circle? No, future is bad. Do I draw a circle with this particular shape in it? No, future is bad. Repeat a bazillion times over for every possible shape you can conceive. Unlike a left/right prediction where either left or right has to be correct and you have only two options, there are unlimited options for a drawing >__>