Yes, I understand that. To me, this is a clear fact. However, Korean Theravada group who follows the vissudhimagga seems to think that this explanation is not enough. Of course, there is no such thing as “a convincing explanation for everyone”. Because people can insist stubbornly on their views as much as they want. But there is a possiblity that someone can still try to listen to us. That’s why I have been looking for a phrase that clearly explains samadhi and jhana separately. For those people, this phrase will be invaluable.