Musar su Proverbi 27:8

The explanation of the second [phrase], "lay apples below me" is to connect Her between Victory (Netsach) and Majesty (Hod). As Her couch is there, in Her being white and red - like those apples the colors of which are mixed - from the side of Kindness. And he needs to visit Her, remember Her and to beseech Her countenance, that She accept food and drink from the Highest flow, which She prevents from Herself and [accordingly] makes Her soul pine for the travail of Israel. In the way that it is with physical patients, so is it with Highest Patients, as She is sick, like we said. And He is [also] sick, as He is 'wandering' from His place - the world to come, Understanding - 'and roaming' from Her in this World; as it is written (Proverbs 27:8), "As a bird roaming from its nest" - which is the Divine Presence - "so is a man roaming from his place." And He waits for Her and swears to her that He will not return to His place until He brings Her back to Her place. Behold, He is also 'wounded because of our sins, willingly crushed because of our iniquities.' And the healing of both of Them is in our hands. And it is fitting to visit Them and to procure Their needs through Torah [study] and through [fulfillment of] the commandments.

The Zohar then explains at length how the saintly innkeeper gathered his companions, all of whom were scholars, to spend the night immersed in study. We should do the same on the night before a circumcision, for Torah study protects and saves from all injury and from every type of harm in the world. Afterwards the innkeeper said, “I request that each of you reveal a novel insight.” So each of them revealed a novel insight about circumcision. He made this request because he knew these words of Torah would be of great benefit in the protection of both infant and mother. The Zohar also relates that engaging in study during the night of the vein nacht causes Eliyahu to appear, accompanied by great lights of Divine favor, which in turn cause Israel much benefits and numerous salvations. Afterwards Rabbi Aba said to his host and to that elder, “Since you are such great scholars, why do you remain here?” The host said, “If the birds were to abandon their place they would not know where to go, as it is stated, “Like a bird wandering from its nest, so is a man who wanders from his place” (Mishlei 27:8). Similarly, if we were to abandon this place, which is prepared for us to study in, we do not know where we would find a place to settle where we would be able to study. For this place is suited for us to study in and it has caused us to merit Torah.