Talmud Bavli Yoma on the Cherubim in the Temple

"Rav Ketina said: When the people of Israel would ascend to the Temple on the festival, the Kohanim would roll up the Curtain for them, and show them the Cherubim which were joined together in loving embrace. The Kohanim would tell the people, 'Behold! You are loved by the Omnipresent, just as the love between male and female.'"

-- Talmud Bavli, Yoma 54a

Midrash Tanchuma on the Study of the Temple Architecture

"When Yechezkiel saw the vision of the future Temple, he exclaimed to God, 'You tell me to go and tell Israel the form of the House? Leave them until they go back to the Land and then I will tell them.' God answered, 'Is it right that because My children are in exile that the building of My Temple should be ignored?' Then God said, 'The study of the Temple architecture in the Torah is considered as being of equal importance to its construction. Go, tell them to study the Temple architecture and as a reward I will consider their study as equivalent to actually constructing the Beit haMikdash.'"

-- Midrash Tanchuma, Tzav 14

Talmud Bavli Megillah on the Ark of the Covenant in the Holy of Holies

"Rabbi Levi said, 'The following statement is a tradition that has been passed down to us from our fathers: The space taken up by the Ark is not included in the dimensions of the Holy of Holies. Miraculously, it did not take up any space at all inside the Holy of Holies.'"

-- Talmud Bavli, Megillah 10b

The Gemara continues: "This was also taught in the following Baraisa: 'The Ark which Moses constructed had ten cubits of space on each side between it and the two walls of the Holy of Holies.' And it is written 'And the area in front of the partition was twenty cubits long and twenty cubits wide.' (I Kings 6:20) This teaches that the Holy of Holies measured twenty cubits by twenty cubits in total."

To clarify: the length from the edge of the ark to the wall of the Holy of Holies was ten cubits in each direction. But how could this be so if the ark itself was 2.5 cubits by 1.5 cubit? Therefore, the ark did not take up any space at all inside the Holy of Holies.

The answer is that the ark only exists in a higher dimensional space, but can be accessed from the center of the Holy of Holies.

It is not a METaphor to say that the Holy of Holies must be the third central ventricle of the brain and that the ark must be the pineal gland. It's the other way around: the human anatomy is a MITaphor of the architecture of the Temple.