How do I interpret the term "realm" and "concluding in this realm" in AN 10.63?

How do I interpret the term "realm" (*idha* ) in AN 10.63 ? It says one who has "seven rebirths at most" will conclude their path in "this realm". So, what is "this realm"? And what does this mean? Meanwhile "one who is extinguished between one life and the next" will conclude their path after "leaving this realm behind" (*idha vihāya *). What does this mean? > “Mendicants, all those who have come to a conclusion about me are > accomplished in view. Of those who are accomplished in view, five > conclude their path in this realm, and five conclude their path after > leaving this realm behind. > > Which five conclude their path in this realm? > > The one who has seven rebirths at most, the one who goes from family > to family, the one-seeder, the once returner, and the one who is > perfected in this very life. These five conclude their path in this > realm. > > Which five conclude their path after leaving this realm behind? > > The one who is extinguished between one life and the next, the one who > is extinguished upon landing, the one who is extinguished without > extra effort, the one who is extinguished with extra effort, and the > one who heads upstream, going to the Akaniṭṭha realm. These five > conclude their path after leaving this realm behind. > > All those who have come to a conclusion about me are accomplished in > view. Of those who are accomplished in view, these five conclude their > path in this realm, and these five conclude their path after leaving > this realm behind.” > AN 10.63 (translated by Ven. Sujato)