" Some adventures begin easily. It is not hard, after all, to be sucked up by a tornado or pushed through a particularly porous mirror; there is no skill involved in being swept away by a great wave or pulled down a rabbit hole. Some adventures require nothing more than a willing heart and the ability to trip over the cracks in the world.
Other adventures must be committed to before they have even properly begun. How else will they know the worthy from the unworthy, if they do not require a certain amount of effort on the part of the ones who would undertake them? Some adventures are cruel, because it is the only way they know to be kind. "

― Seanan McGuire , Down Among the Sticks and Bones (Wayward Children, #2)