Yirah as gateway and fruit of avodah

וכן ענין מראות החלום אף כי בודאי יעקב אע"ה לא הי' צריך לחלומות.

And so too the matter of the visions of the dream — although surely Yaakov Avinu had no need for dreams.

On its own level Yaakov Avinu did not require a dream to receive prophecy; he was capable of clearer perception.

רק כי הכניס עצמו במקום זה אשר לא הי' יכול להסתכל באספקלריא המאירה רק בחלום.

Only that he entered into this place where he could not gaze through the "shining glass" (aspaklaria ha-me'irah) except by way of a dream.

Because Yaakov had stepped into the lower, darker domain of Charan/galus, the clear "shining lens" of prophecy was available to him there only in the dimmer form of a dream.

וכן נדמה כל הגלות לחלום כמ"ש היינו כחולמים.

And likewise all of galus is compared to a dream, as it is written: "we were like dreamers" (Tehillim 126:1).

Exile as a whole has the quality of a dream — a state of concealment and blurred vision — as the pasuk about the return to Tzion describes.

ולהשיג מראה בעת החושך שמכונה בשינה.

And to attain a vision in the time of darkness, which is referred to as "sleep" —

To receive a true vision while in the "darkness" — the spiritual night symbolized by sleep —

הוא ענין החלום.

this is the matter of the dream.

is precisely the function of a prophetic dream: light reaching a person even amid concealment.

שזה בא רק ע"י רב התדבקות כל היום בעבודת הבורא כמ"ש במדרש הפ' כמה לך בשרי כו'.

For this comes only through great attachment (devekus) all day long in the avodah of the Creator, as the Midrash says on the pasuk: "my flesh longs (kamah) for You," etc. (Tehillim 63:2).

Such a vision in darkness is earned only by clinging to Hashem throughout the daytime; the Midrash links it to the verse of the soul's parched longing for Hashem.

שע"י שכלתה נפשו ממש ככמהיות הללו שצמאים למים.

For through his soul truly yearning (kalsah nafsho), like those parched ones who thirst for water —

When a person's soul is utterly consumed with longing for Hashem, like one desperately thirsting for water,

עי"ז יכול לקבל נבואה גם בלילה וזמן שינה וגלות כנ"ל.

through this he can receive prophecy even at night, in the time of sleep and galus, as above.

that very thirst enables him to receive prophecy even in the night of exile — the daytime devekus illuminating the nighttime darkness.

ומפרשה זו נלמד שבחו של יעקב אע"ה במה שהשיג חלום נפלא כזה ונאמר אח"כ ויירא ויאמר מה נורא כו'.

And from this parshah we learn the praise of Yaakov Avinu in that he attained such a wondrous dream, and afterward it says: "and he was afraid, and he said, How awesome..." (Bereishis 28:17).

The parshah highlights Yaakov's greatness: after receiving so lofty a vision, his immediate response was not pride but awe and fear.

והוא פלא שמחלום כזה שיש להתגאות בו.

And it is a wonder that from such a dream, in which there is reason to feel pride —

Astonishingly, an experience that might have inflated a person with self-importance

קיבל הוא ממנו יראה והוא סימן אמת כמ"ש בספרים.

he received from it yirah (fear/awe) — and this is a sign of truth, as is written in the sefarim.

produced in Yaakov only yiras Shomayim. The sefarim teach that genuine yirah resulting from an experience is the mark that the experience was authentic and true.

וכלל הדברים שכל מעשה שמקדמין לה היראה היא מתקיימת באמת.

And the principle of the matter is that any deed that is preceded by yirah endures in truth.

When yirah comes first, before a deed, that deed has lasting, truthful substance.

וכן כל מעשה שנעשית באמת נשאר ממנה יראה לאדם.

And likewise any deed that is done in truth leaves over yirah for the person.

And in reverse: any deed done truthfully leaves behind a residue of yirah in the one who did it. Yirah is both the gateway to and the fruit of authentic avodah.

והיראה היא ראשית הכל ואחרית הכל וכבר כתבנו מזה במ"א:

And yirah is the beginning of everything and the end of everything; and we have already written of this elsewhere.

Yiras Shomayim frames all of avodah — it is the starting point and the culmination, the foundation a deed rests upon and the lasting impression it leaves.

Summary: Yaakov Avinu did not need a dream, but by entering the lower realm — like galus, which is itself "like a dream" — he could perceive the shining lens of prophecy only in that dimmer form. Such vision in the darkness of night and exile is earned through whole-day devekus and a soul consumed with thirst for Hashem. Yaakov's true greatness shines in that so exalted a dream produced in him not pride but yirah — the sign of an authentic experience. For yirah is both the gateway to and the lasting fruit of every true deed: the beginning of everything and the end of everything.