Oh, it's like a code name then? (Tana please, that's not... well, she's already thinking that's what it is, so she's going to go with it.)

They are. Except in a way, shinki are a lot like weapons too...

(In a single conversation, she's managed to wrap herself around something and contradict herself. Good thing she's not so easy to confuse... yet.)

I think the weapons you can hold are better than the weapons one would command. It's a lot more reliable to wield a weapon in your hand by your own choice than to risk making a choice someone else can't live with.