"In the original brane cosmology, the universe as we perceive it is said to be a brane (membrane) space-time that borders a higher bulk (independent region), isn't it? Compared to the worldview of the past series, the worldview of "SJ" that you have just described is quite science-fiction-like and difficult to understand.
I think there is a way to interpret the aforementioned relationship between "Brane" and "Bulk" by replacing it with the worldview of the Kabbalah, which has been used extensively in the previous "Shin Megami Tensei" games. The bulk is the Tree of Life (the entire world), the branes are each of the Sefirot (Malkuth, Yesod, etc.), the real world (the real world brane) is the material world (World of Assiah), the Schwarzwelt (the Information Dimension brane) is the immaterial world (World of Atziluth), and so on."