It is known that Mishkan represents the komah shleima on the briyah, just like the human being. And as the Beis Aharon writes in Teruma, everything in the Mishkan is also inside of us.

I was thinking that perhaps the Aron is kineged the mind, as it says “and into the aron you shall place the edus that I will give you”. And the Mizbeach haketores is kineged the heart, and the shulchan kineged our mouths, taavas achila, and the Menorah with its arms represents aseh tov, mitzvos, which tie this world to the upper worlds, and bring the light of Torah to this world of asiya - כי נר מצוה ותורה אור, and the mizbeach hachitzon is kingeged tikkun hayesod - זה האשה אשר תקריבו לה’ - and you can’t enter the Kodesh before passing first this mizbeach, which stands outside the kodesh.