If Nita had known Nike was a spirit, she'd have been a little less technical in explaining - but it seemed enough for the other girl for her to move on to her questions, so Nita let it be.

Choosing to answer the last question first, she began: "Well, in that rucksack are a change of clothes and some toiletries - toothbrush, things like that - and a notebook. And maybe something from home? That's the case with most people, anyway.

"As for this," she continued, holding up her own SCA for comparison.

"It's called a Safety Control Apparatus, and whenever we're out and about on worlds it minimizes the impact of the environment so we can better endure it. It... also keeps some people anchored to this reality."

Her voice quieted a little, thinking of Tidus and how he had almost faded completely upon taking the thing off last platform.

"So if there's a medical complication or something you'd normally be dealing with-"

The mention of a 'holy' dress finally pinged Nita, so she continued, "The SCA should also help keep that in check. You have to keep it on for that to work, though, okay? I saw someone take theirs off a hundred feet underwater, once, and I had to take them back to the surface in a hurry!"