Potato, in all of her Potato-ness, upon coming to the west-ward tower's upper area, takes a look at the motto, and does exactly what it says.

She questions the path, which, according to everyone else, is the only path there.

She proceeds to jump into the pit while thinking about that very thing, not really worried about if she'll fall float or whatever. She's supposed to question the path, not the hole!

she might do this a few times before bothering with the steps if that results in the same thing as under questions, and i'm very sorry