Some prayers require you to find lost items or pets, so tracking a person or animal would likely come in handy. As for ayakashi, I think it'd depend largely on the one in question. Some leave a trace behind, if they aren't just standing out where you can already find them, but it's harder to pick up if you don't have much experience in tracking in general.
[ We're all learning on the fly on some of these prayers it's fine. ]
no subject
[ We're all learning on the fly on some of these prayers it's fine. ]