User blog comment:Meruemgungiplayer/Hatsu/@comment-33963503-20190529125932/@comment-33963503-20190530005855

No they do not come from the manga itself, they are just examples that show how that could be done in Japanese without any problems gramatically and thematically. They are just some sentences people could have spoken in places like pixiv and 2ch, without anyone thinking they are "wrong".

Actually when you think about it, since in the manga Biscuit stated that hatsu is one of the component of "Ko", and the water divination test seems to show hatsu can be used as a mean to train nen ability, it is more sensible to think nen ability as application of hatsu.

But still when we saw these sentences in Japanese we would immediately know what they mean, even though the activity and the result do not necessary have identical meaning. It would actually be  "impolite" if you try to correct somebody that use hatsu in this manner, because such kind of thing is a norm in conversation.

The funniest thing is the English audience seems to grasp this subconsciously by their own as well. However in some cases there are expression that are clearly wrong when you view them as Japanese, such as the previous "hatsu ability" and "hatsu categories (発系統)", where the word meanings do not connect. You simply cannot use nen (念) and hatsu (発) interchangeably.