For when Solomon built the Temple, he desired to take the Ark into the Holy of Holies, whereupon the gates clave to each other. Solomon uttered twenty-four prayers,14 yet he was not answered. He opened [his mouth] and exclaimed, 'Lift up your heads, O ye gates; and be ye lifted up, ye everlasting doors: And the King of glory shall come in.15 They rushed upon him to swallow him up, crying, 'Who is the king of glory'? 'The Lord, strong and mighty,'16 answered he. Then he repeated, 'Lift up your heads, O ye gates; Yea, lift them up, ye everlasting doors: and the King of glory shall come in. Who is this King of glory? The Lord of hosts, He is the King of glory. Selah';17 yet he was not answered. But as soon as he prayed, 'O Lord God, turn not away the face of thine anointed remember the good deeds of David thy servant,'18 he was immediately answered.If I recall the parallel Midrash Rabba correctly, it was a sizing issue. Shlomo Hamelech wished to take in the Aron, but the height of all of it combined they calculate to be precisely the height of the entrance. If the heights are precisely the same, then obviously one cannot enter the other. So Shlomo said "Lift up your heads, O ye gates."
This calls to mind this video which proves that Moshe Rabbenu was Satmar, and wore a Satmar hat: