The description of the Temple and the city, has some concrete and precise elements, but at the very same time, lacks some very central details.  

According to Yehezkel's prophecy, the changes in this Temple include not only the outer structure of the edifice, but also fundamental difference in who enters it. This change relates both to the measure of access afforded the people, but also the division of roles among the various leaders of the nation, and the degree to which they are connected to the Temple.

The impression arising from Yehezkel’s prophecy is that the Temple is not a spiritual center for the entire nation. The Temple serves the kohanim and leviim, who perform their service within it as representatives of the people, while the only roles that are given to the people are the auxiliary functions and appearances: funding of the sacrifices, prostration, and a partial view of the Divine service.

Courtesy of the Virtual Beit Midrash, Yeshivat Har Etzion