And when Avram was 75 years old, meaning 7 ‘emotions’ of Ze’eir Anpin x 10 Sefiros within each emotion =70, which is the ‘outer dimension,’ together with the 5 aspects of Chesed-Kindness of the Inner Aspect of Kesser, which is the inner dimension,
In order for the intellect of Chochma and Bina of Atzilus to shine into the emotions of Ze’eir Anpin, it needed an additional power from Kesser which transcends Atzilus. This additional power is called the “5 aspects of Kindness” of Kesser. These “5 aspects of Kindness of Kesser” are thus the inner dimension and power for the intellect of Chochma and Bina to fully integrate into the 7 emotions of Ze’eir Anpin, which are the ‘outer dimension,’ relative to Chochma and Bina.
He left “Charan” and the illumination became revealed from the intellect into the emotions.
Thus, the number 75 corresponds to how a shine from Kesser enables Chochma and Bina to come to full revelation in the emotions of Ze’eir Anpin. This is why Avram was 75 when he was told “Lech Lecha.”
Now, as it says (Targum Yonasan Ben Uziel on Bereisis 50:13) that “the head of Esaiv is buried near the chest of Yitzchok.”
The fact that Eisav’s “head” is placed next to Yitzchok represents how severity of unholiness – Esaiv – derives his life from severity of Holiness – Yitzchok.
Similarly, prior to the refinement, Lot was included within the spiritual source of Avraham in holiness, like dross that, prior to refinement, is mixed into gold.
Since ‘לוֹ"ט-Lot’ is numerically equivalent to the word ‘מַ"ה-transcendent’ power of wisdom of holiness (which both equal 45), since Lot, who was the aloof and arrogant aspect of wisdom of unholiness, was derived from the ‘external aspect’ of Hashem’s Name spelled out with the letter א' equaling 45, which corresponds to the level of Chochma-Wisdom.
The aloof and arrogant wisdom of unholiness derives from the ‘external aspect’ of wisdom of holiness. This is how Lot is derived from Avraham.
This is the source of Chochma and Bina of Kelipa, which is thus called ‘לוֹ"ט-Lot,’ an expression of ‘cursed.’
This is why Lot went with Avraham prior to the refinement and separation.
And that is why Lot bore the nations of Amon and Moav, from whom Rus the Moaviya and Na’ama the Ammonis descended.
