Why can't I put Miraidon in a box?

Excuse me, but I'm a bit confused. I've been trying to put Miraidon in a box, but it seems to be impossible. Could you please explain to me why that is? I've read that it's a powerful and valuable cryptocurrency, but I don't understand why I can't store it in the same way I would store other digital assets. Is there something unique about Miraidon that makes it unsuitable for traditional storage methods? Or is there a specific process or tool that I need to use in order to safely and securely store my Miraidon holdings? Thank you for your help in clarifying this matter.