I've just opened the lock with Logfella's key (after recovering it from Side B), but I don't know what I'm supposed to do with this aureole:
I've come across many similar objects in the quest thus far, but this one has its own instructions with it. (Don't I wish they all did...) No matter what I've done to the aureole, I've gotten no reaction.
I even tried chomping down on a random mushroom I found while exploring the wilderness, and a lot of red dots appeared, but there was nothing particularly helpful that occurred as a result.
How do I properly stimulate this particular aureole?