The Garden of Eden has three walls, all of them – of fire.
The outer enclave.... there abide the pious of the gentiles...
The second enclave... there reside all those who await eagerly for the Messiah. All of them, from that enclave, behold the Messiah once each day. Each Friday, from the time that Jews are determined to cease the weekday labors, all the chambers of the Garden of Eden quake. Now the inner chamber, within which the Messiah resides, is called ‘The Bird’s Nest’. The Messiah emerges from that chamber, with all the Righteous accompanying him. He enclothes himself in garments of vengeance, which are prepared ready for him, for the salvation of Israel. All of them enter together with him... and he together with the Patriarchs emerges thence. He stands at the half-way point at the location of the pillar, which stands in the middle. He takes hold of the four rings at the four corners of the Garden. He utters a loud shout, at which the sky above the Garden trembles... Seven angels stand by him, ready, and say to him: Chosen One of the Lord, be silent, for the time has arrived when the wicked regime is about to be uprooted from its place. Then there is heard from the Synagogues and the Study-Halls, the sound of Jews reciting fervently ‘Amen, May His Great Name Be Blessed, from Ever and Ever, and to All Eternity! ‘Then the Holy-One Blessed Be He shakes up all the skies, and sheds two tears into the Great Ocean. The righteous enter; then the Messiah enters that chamber referred to as ‘The Bird’s Nest’.
In the Garden of Eden, on the eastern side, there is a secret, concealed chamber: this chamber is known as ‘The Chamber of Brightness’: it is constructed like the essence of the heaven – transparently pure [=clear]. All its walls all around are made of letters which stand out and sparkle – some with an upward motion, some with a downward motion. The letters on one side fly off, and then settle on another side, while those on the latter side fly off and settle on the former side. They are in a continuous process of interchange, there is never any aberration whatsoever. No-one exists who can comprehend them, because they do not stop moving even for one moment! Plaited networks of flowers of the four different shades of brightness shine out into the chamber.
On the Sabbath Day, the Messiah goes into that chamber, with the Patriarchs. The Letters settle. They read [i.e. verbalize] the letters, and experience a great joy; but no-one understands the nature of this Joy.
Now, in the inner part of that chamber, stands a door leading further [=deeper] inside there. Beyond that partition, on the inner side, appear the images of these martyrs of Lod, and of the ten Sages martyrized by the Roman government. The Messiah arises and makes his away inside there. When he beholds those images, he lets out a loud cry, and roars like a lion. All the Garden, with all the Righteous ones, quakes violently. The pillar located in the center of the Garden vibrates violently, and moves upwards and downwards. Four Wheel-Angels are all set ready, and they grasp the four rings. The sky rotates; the loud cry is heard in the celestial realms. And the Holy-One Blessed be He sheds two tears, downwards, on that assembly. Then the Wheel-Angels enter the precinct of Messiah, whereas the Patriarchs all enter, via the Eastern-Gate access of that chamber. There they see all the excellence of the Righteous Ones of Lod, and of the ten martyrized by the Roman government. All of them stand silently, together with Messiah; those Wheel-Angels are all raised up lofty; they ascend to the Supreme King of Kings, the Holy-One Blessed be He. He swears to them that He will don garments of vengeance and claim their vengeance from the gentile nations, as stated: ‘He will render judgment upon the nations, and they will be filled with corpses; He will crush heads over a vast area’ (Ps. 110:6). Then, they finally return to be close by the Messiah.

Excerpt taken from Hebrew edition of: Midreshei Geula, edited by Yehuda Even-Shmuel (Kaufmann)