Most importantly, in Shaar HaTalmud Torah of the Alter Rebbe's Siddur, it is almost surely indicated that what was revealed in the Holy Temple was a degree of Shechinah which surpassed the revelation in all of the higher Worlds. This is also indicated in Or HaTorah, Bamidbar, end of p. 16. The Rebbe Shlita therefore understands that the Alter Rebbe speaks of two distinct qualities found in the Holy Temple. Because of this, the revelation of the Shechinah was the illumination of Chochmah of Atzilut, after it had been clothed in Malchut of Atzilut and Malchut of Beriah. Thus the manner in which the Shechinah was drawn down surpasses only the World of Yetzirah, but as to the actual illumination that shone there, this was a light which was higher than that in all the upper Worlds.
Space derives from the immanence of G-dliness.
That which transcends space derives from the transcendence of G-dliness. Parentheses are in the original text.