What does Ezekiel 48:8 mean?

South of Judah is the special section you’re to set aside. It’s 25,000 cubits wide, running east to west, and as long as the other tribal portions. The sanctuary will be right in the middle of it. Ezekiel 48:8 - Modern Text Bible

(A central, sacred area is set aside below Judah’s land, with the temple at its heart. This is a unique, holy zone.)