Likutei Moharan 28:4/ליקוטי מוהר"ן כ״ח:ד׳

14. This is the explanation of what the Wise Men of Athens said:

2Build us a house in the sky — For [this refers to] all those people who want to structure their service of God based on the Torah they hear from Jewish scholar-demons, who in truth have nothing upon which they can rely. It is like their wanting to build a house in the sky. For the Jewish scholar-demons fly in the air. They do not have upon what to rely, like the demons that fly in the air.

3He uttered a Holy Name and st ood between heaven and earth — That is, the true Torah scholar is between heaven and earth; as in the Aramaic translation of (1 Chronicles 29:11): “for all that is in heaven and on the earth”— {he joins heaven and earth}.

4He said to them, Bring me bricks and tina (cement) from hatam (there) — This is because tina (grievance) has entered the hearts of these [people], as above, and their heart has become a heart of stone. Now, when a true Torah scholar sees their evil intentions, he tells them to remove the grievance from their hearts—they should remove the grievance that is in the heart of stone and not commit heresy against the Holy One.

5This is because the grievance and the heart of stone <stem from the concept of hatam>—i.e., from the concept of the abovementioned fallen alephs, which are numerically equivalent to HaTaM {because four times ALePh plus one for the principle itself totals HTM (445)}.

6They said, Can anybody get up there? — They said to him, “Who can elevate the fallen alephs?” And he answered them:

7Is there anyone who can build a house between heaven and earth? — In other words, [this is] someone who builds his house with the help of true Torah scholars. He [and others like him] have on what to rely. This is because true Torah scholars are the foundation of everything. And the person whose house is a meeting place for <true> scholars—who builds his house <“between heaven and earth,”> corresponding to, “A holy man passes by us tamid. Let us make a partitioned loft”—[is one of] those people who elevate the <fallen> alephs, as explained.