"It's alright. Most in my world don't have experience with them, either. Because they're so close to life itself, their existences can be rather ambiguous--many are unable to perceive them at all."

Even those who could see mushi didn't always understand them. Ginko himself has had many, many years to learn all he has.

"At any rate, it depends on the kind of mushi. Some have a greater sense of will than others."