Alright, so I recently obtained Days, and while I'm enjoying it, the challenges I just unlocked seem like quite the hassle. I've completed 2 already, and, well, it's rather boring. However, I'm interested in what I could get by getting sigils: stuff would help, because I'm notoriously bad at video games. So, should I do them? Or should I save them for the end? Or not do them at all?