והנה המובן מהשקפה ראשונה לכאורה מלשון זה המאמר לחסירי מדע
Now, at first glance, what the words of this passage imply to those who lack understanding1
שלימוד איסור והיתר וסדר טהרות, הוא מאילנא דטוב ורע
is that the study of [the laws of] ritual prohibition and permission, and the Order of Taharot, where the laws of purity and impurity are found, relates [only] to the Tree of [Knowledge of] Good and Evil.
מלבד שהוא פלא גדול מחמת עצמו
Now this is most surprising in itself, that a particular area within the Torah should be designated as the Tree of Knowledge of Good and Evil, thus relating it to kelipat nogah, which is an admixture of good and evil;
וסותר פשטי הכתובים ומדרשי רבותינו ז״ל, שכל התורה הנגלית לנו ולבנינו נקראת: עץ חיים למחזיקים בה, ולא ספר הזהר לבד
moreover, this contradicts the plain meaning of Scripture and the teachings of our Sages, of blessed memory, that the entire Torah that has been revealed to us and to our children, i.e., the dimension of nigleh, is called2 "A tree of life to those who hold fast to it," and not only the Book of the Zohar.
ובפרט שהיה גנוז בימיהם
This is especially so, since [the Zohar] was [still] concealed in their days;
וגם כל חכמת הקבלה היתה נסתרה בימיהם, ונעלמה מכל תלמידי חכמים, כי אם ליחידי סגולה
indeed, the whole wisdom of the Kabbalah was hidden in their days and concealed from all the Torah scholars, except for a select few,
ואף גם זאת, בהצנע לכת ולא ברבים, כדאיתא בגמרא
and even then, [it was studied] in a concealed manner and not publicly, as stated in the Gemara.3
וכמו שכתב האריז״ל, דדוקא בדורות אלו האחרונים, מותר ומצוה לגלות זאת החכמה, ולא בדורות הראשונים
Thus R. Isaac Luria, of blessed memory, wrote4 that it is only in these latter generations that "it is permitted and obligatory to reveal this wisdom" — i.e., the Kabbalah, which illuminates the esoteric dimension of the Torah — but not in the earlier generations.
On this entire subject, see the introduction of R. Chayim Vital to Shaar HaHakdamot, which also appears as the first addendum to Kuntres Etz Chayim by the Rebbe Rashab (in the Kehot edition entitled Otzar HaChassidim), as well as the introduction of the Rebbe Rayatz to this Kuntres.
וגם רבי שמעון בר יוחאי אמר בזהר הקדוש, שלא ניתן רשות לגלות רק לו ולחביריו לבדם
R. Shimon bar Yochai, too, stated in the sacred Zohar5 that permission to reveal [the secrets of the Kabbalah] was only granted to himself and his associates.
ואך גם זאת פליאה נשגבה
Now this, too, is a remarkable wonder.
דלפי זה
For if so, i.e., according to a superficial reading of the above quotation from Ra'aya Mehemna, from which it would appear that only the Zohar is called the Tree of Life, while the revealed plane of the Torah is considered the Tree of Knowledge of Good and Evil,
לא היה לימוד איסור והיתר, וכל שכן דיני ממונות, דוחין מצות תפלה
then the study of [the laws of] ritual prohibition and permission, and surely [the study of] civil laws, such as litigation on monetary matters,6 should not override the obligation of prayer,
שנתקנה על פי סודות הזהר ויחודים עליונים, ליודעים
which is set out according to the secrets of the Zohar and on the Supernal Unions (of the various Divine Names and Supernal Sefirot), for those who are familiar with them,
כרבי שמעון בר יוחאי וחביריו
such as R. Shimon bar Yochai and his associates.
וזה אינו
But this is not the case. In fact, the study of the laws of what is ritually prohibited or permitted, and even the study of civil law, does override the obligation to pray at fixed times.
כדאיתא בגמרא, דרבי שמעון בן יוחאי וחביריו, וכל מי שתורתו אומנותו, אין מפסיקין לתפלה
As stated in the Gemara,7 R. Shimon bar Yochai and his associates, and likewise any others whose Torah study is their sole occupation, do not interrupt [their Torah study] for prayer.8
ואפילו כשעוסק בדיני ממונות, כרב יהודה, דכולהו תנויי בנזיקין הוי
[This applies] even when one is occupied with the study of civil law, like Rav Yehudah, all of whose studies were in the Order of Nezikin9 (lit., "damages");
ואפילו הכי, לא הוי מצלי אלא מתלתין יומין לתלתין יומין, כד מהדר תלמודא, כדאיתא בגמרא
nevertheless, in order not to interrupt his studies, he prayed only every thirty days10 when reviewing his studies, as stated in the Gemara.11
ובירושלמי, פרק קמא דברכות, סבירא ליה לרבי שמעון בר יוחאי דאפילו לקריאת שמע אין מפסיקין, כי אם ממקרא ולא ממשנה, דעדיפי ממקרא, לרבי שמעון בר יוחאי
Also, in the Talmud Yerushalmi, in the first chapter of Berachot,12 R. Shimon bar Yochai is of the opinion that even for the Reading of Shema one interrupts only the study of Scripture, but not of Mishnah, the Oral Torah, the study of which is superior to the study of Scripture,13 according to R. Shimon bar Yochai.
ולא חילק בין סדר זרעים ומועד וקדשים, לטהרות ונזיקין
He did not differentiate between [studying] the Orders of Zera'im, Moed and Kodashim, and [studying] the Orders of Taharot and Nezikin.14
He thus holds that even when studying the monetary laws in the Order of Nezikin one should not interrupt one's studies for the Reading of Shema.
(וסותר דעת עצמו ברעיא מהימנא בכמה מקומות, דמשנה איהי שפחה כו׳
(15Actually, he [here] contradicts his own opinion, given in a number of instances in Ra'aya Mehemna,16 that Mishnah (relative to Scripture) is termed a "handmaiden" (Heb.: shifchah), and so on;
והמקרא, שהוא תורת משה, ודאי עדיפא מקבלה, דאיהי מטרוניתא ברעיא מהימנא שם
and Scripture, the Torah of Moses, is surely superior to the Kabbalah, which is termed a "queen" (Aram.: matrunita) in the above-quoted passage in Ra'aya Mehemna,
ותורה שבכתב הוא מלכא
while the Written Torah is termed a "king" (Aram.: malka).
Thus, according to the last-quoted set of terms from R. Shimon bar Yochai, Scripture is superior even to Kabbalah and surely to Mishnah. From the previous passage, however, as cited in the Talmud Yerushalmi, it would seem that he maintains that Mishnah is superior to Scripture, for one does not interrupt one's study of Mishnah in order to read Shema at its prescribed time, though one does interrupt one's study of Scripture.
Here the Alter Rebbe interpolates a Kabbalistic definition of the term malka ("king"):
(דהיינו יסוד אבא, המלובש בזעיר אנפין, כמו שכתב האריז״ל))
(17This is the Yesod of Abba vested in Z'eir Anpin, as stated by R. Isaac Luria, of blessed memory.18))
To resume the discussion of R. Shimon bar Yochai:
וגם פלפול הקושיות ותירוצים, דמסטרא דרע ורוח הטומאה, אשכחן ברבי שמעון בר יוחאי, דעסק ביה טובא
Moreover, we find that R. Shimon bar Yochai dealt considerably (not only with the mere statements of law in the Mishnayot, but) also with the argumentation of problems and solutions, which (according to the original quotation from Ra'aya Mehemna) derive from the side of evil and from the spirit of impurity.
גם בהיותו במערה
[This he did] even when he was in the cave, where legal adjudication, especially in civil suits, was obviously uncalled for.
ואדרבה, בזכות צער המערה זכה לזה
Indeed, the very fact that he underwent anguish [when forced to hide] in the cave made him worthy of these attainments.
כדאיתא בגמרא, דאמר לרבי פנחס בן יאיר אכל קושיא, כ״ד פירוקי
For, as stated in the Gemara,19 he countered every problematic query posed by R. Pinchas ben Yair with twenty-four solutions,
ואמר ליה: אלמלא לא ראיתני בכך כו׳
and [R. Shimon] said to him: "If you had not seen me like this," in this sorry state in the cave, ["you would not have found me like this"].
(וגם באמת, על כרחך עיקר עסקיהם במערה היה תורת המשניות, ת״ר סדרי שהיה בימיהם עד רבינו הקדוש
(20In fact, their principal occupation in the cave — the principal occupation of Rashbi and his son, R. Eliezer — must have been with the teachings of the Mishnayot, i.e., the six hundred Orders extant in those days21 until the time of our holy Master, R. Yehudah HaNasi, who compiled the Mishnayot in six Orders.
דאילו ספר הזהר והתיקונים היה יכול לגמור בב׳ וג׳ חדשים, כי בודאי לא אמר דבר אחד ב׳ פעמים)
For he could have completed the Zohar and the Tikkunim, the Tikkunei Zohar, in two or three months; for surely he did not repeat the same subject twice.22)
Surely, then, he was occupied almost the entire time with the study of the six hundred Orders of the Mishnah.
גם אמרו רבותינו ז״ל: מיום שחרב בית המקדש אין לו להקדוש ברוך הוא אלא ד׳ אמות של הלכה בלבד
Moreover, our Sages, of blessed memory, have taught23 that "Since the day the Temple was destroyed, the Holy One, blessed be He, has only the four cubits of Halachah." The study of Torah law thus takes the place of the Holy Temple.
How, then, can we possibly say, as the above passage from Ra'aya Mehemna might superficially indicate, that the study of the laws of ritual permissibility, and the like, is designated as the Tree of Knowledge of Good and Evil, and thus related to kelipat nogah, which is an admixture of good and evil?