Binding the middos to Hashem's unity

וישכב במקום ההוא.

"And he lay down in that place."

The Torah stresses that Yaakov lay down specifically "in that place" — the future site of the Bais Hamikdash.

פרש"י לאפוקי י"ד שנה כו'.

Rashi explains: to exclude the fourteen years (during which he did not lie down to sleep), and so on.

Rashi notes that "in that place" he lay down, whereas for the fourteen years he learned in the yeshiva of Ever he did not lie down at all — showing how singular this place was.

כמ"ש דהמע"ה אם אתן שנת לעיני כו' עד אמצא מקום לה' משכנות לאביר יעקב תלה הגדולה בבעליו.

As Dovid Hamelech, alav hashalom, said: "I will not give sleep to my eyes… until I find a place for Hashem, dwellings for the Mighty One of Yaakov" (Tehillim 132:4-5) — he attributed the greatness to its owner.

Dovid too withheld sleep until he could find Hashem's "place," and he tied that place specifically to Yaakov ("the Mighty One of Yaakov"), showing that this very place belongs to Yaakov.

וכ"כ מקודם נדר לאביר יעקב.

And likewise earlier it says, "he vowed to the Mighty One of Yaakov."

The pasuk had already linked Dovid's vow about the place to "the Mighty One of Yaakov," reinforcing that this place is Yaakov's portion.

והוא המקום שכתוב ויפגע במקום כנ"ל.

And this is the place of which it is written, "and he encountered the place," as above.

The "place" Yaakov "encountered" is that same holy place — Har HaBayis — the unique meeting-point with Hashem.

וז"ש אז תלך לבטח כי אז הוא תיקון ז' המדות לשרש האחדות וממילא ניתקן כל הדרכים כנ"ל:

And this is the meaning of "then you shall walk securely" (Mishlei 3:23) — for "then" is the rectification (tikkun) of the seven middos toward the root of unity, and automatically all the pathways are rectified, as above.

When a person binds his seven emotional traits back to their root in Hashem's oneness, his whole "way" through life becomes set right and secure — which is what Yaakov accomplished by reaching that place of unity.

Summary: Yaakov's lying down "in that place" marks the unique holy site that belongs to him, the same place Dovid Hamelech longed to find for Hashem. Reaching it represents binding the seven middos to the root of Hashem's unity, through which all of a person's pathways are rectified and made secure.