Torah settles the soul in the body

איתא הכל מודים בעצרת דבעינן נמי לכם שבו ניתנה תורה לישראל.

It is taught: all agree that on Atzeres (Shavuos) we also require "lachem" (that the day be partly for yourselves), because on it the Torah was given to Yisrael.

Even though Yom Tov is normally devoted to Hashem, Shavuos must also include physical enjoyment, because the Torah was given to be lived out within the body and this world.

דאיתא גדולה תורה שנותנת חיים בעוה"ז ובעוה"ב.

For it is taught: great is the Torah, for it grants life in this world (olam hazeh) and in the World to Come (olam haba).

The Torah gives life on both planes — it is not only spiritual but sustains a person here in the physical world as well.

דכתיב תורת ה' תמימה משיבת נפש.

As it is written, "The Torah of Hashem is perfect, restoring the soul" (Tehillim 19:8).

The Torah's role is to "restore the nefesh" — to settle the soul so that it can dwell within the body.

כי הנפש מלמעלה היפוך כל מעשה עוה"ז והגוף.

For the nefesh (soul) is from above, the very opposite of everything of this world and of the guf (body).

The soul, drawn from a higher realm, is by nature opposed to the material concerns of the body.

לכן הנפש והגוף נלחמים זה עם זה ואיתא במד' ויקרא וגם הנפש לא תמלא משל לעירוני שנשא בת מלכים אפילו מאכילה כל מעדנים אינו יוצא ידי חובתו כמו כן הנפש לא תשבע ממצות ומעש"ט שהיא מלמעלה ע"ש.

Therefore the soul and the body wage war with one another. And it is brought in Midrash Vayikra on "and also the soul is not filled" (Koheles 6:7): a parable of a villager who married a princess — even if he feeds her every delicacy, he does not fulfill his obligation to her; so too the soul is never sated by mitzvos and good deeds, for it is from above — see there.

Because the soul comes from such a lofty place, no amount of mitzvos can fully satisfy it, just as a princess raised in the palace cannot be contented by a commoner's fare.

אכן התורה נותנת דרך שיתקיים הנפש בגוף לכן היא משיבת נפש.

However, the Torah provides a way for the soul to endure within the body, and therefore it "restores the soul."

The Torah is the bridge that allows the heavenly soul to make peace with bodily life and settle within it.

וכ"כ נפשי ישובב כו' במעגלי צדק כו'.

And so it is written, "He restores my soul... He leads me in paths of righteousness (ma'aglei tzedek)..." (Tehillim 23:3).

The "paths of righteousness" — the Torah's guidance — are precisely what restore and reseat the soul.

שהתורה מורה דרך איך להשיב את הנפש בגוף לכן איתא אוי להם לבריות מעלבונה של תורה כו' אשה יפה וסרת טעם כו'.

For the Torah shows the way how to settle the soul within the body; therefore it is taught, "Woe to the creatures for the insult of the Torah..." and, "A beautiful woman lacking in taste..." (Mishlei 11:22; Avos 6:2).

Without the Torah a person is like beauty without sense — he lacks the means to give his soul its proper place and so dishonors the Torah by neglecting it.

פי' שבלי תורה אין הנפש מתיישב לעשות פעולות הראויות לה.

The meaning is that without the Torah the soul cannot settle itself to perform the deeds befitting it.

Only through Torah does the soul find the framework to express itself in proper action within the body.

ולכן הקדושים שהיו קודם התורה הי' במס"נ שלא עפ"י הטבע כלל.

This is why the holy ones who lived before the Torah served with mesirus nefesh (self-sacrifice) that was entirely beyond the natural order.

Before the Torah was given, the only path to closeness with Hashem was super-natural self-sacrifice, because there was no settled way to unite soul and body.

אבל כשניתנה תורה יכול כל איש ישראל למצוא לו קיום עפ"י מצות התורה להתיישב הנפש בגוף.

But once the Torah was given, every Yid can find for himself a stable existence through the mitzvos of the Torah, settling the soul within the body.

The Torah made avodas Hashem accessible to every person, providing a natural, ongoing way to harmonize the soul with bodily life.

ולכן אמרו אין לך בן חורין אלא העוסק בתורה שמשבית המלחמה שבין הנפש והגוף לכן הוא בן חורין:

Therefore they said, "There is no free man except one who occupies himself with Torah" (Avos 6:2), for he stills the war between the soul and the body, and so he is a free man (ben chorin).

True freedom is the inner peace of one whose Torah has ended the conflict between soul and body, so that he is no longer torn between them.

Summary: The soul, coming from above, is naturally at war with the body and can never be satisfied by this world; the Torah, given on Shavuos, "restores the soul" by providing the way for the heavenly nefesh to settle peacefully within the guf — which is why one who toils in Torah is the only truly free person, having ended the inner war between soul and body.