Shabbos opens the gate weekday knocking seeks

הפותח שער לדופקי בתשובה.

"He who opens a gate for those who knock in teshuvah."

Citing the Selichos phrase, the Sefas Emes focuses on the image of Hashem opening a gate to those who "knock" through teshuvah.

בוודאי היא מ"ש לשקוד על דלתותי ובמד' דלת לפנים מדלת.

Surely this is what is written, "to wait diligently at My doors," and in the Midrash: a door within a door.

This "knocking" corresponds to "waiting at My doors" (Mishlei 8:34), which the Midrash describes as a door behind a door — successive inner gateways to Hashem.

והוא השער החצר הפנימית כו' ששת ימי המעשה כו' סגור וביום השבת יפתח.

And this is "the gate of the inner court…" — which, during the six days of work, is shut, and on the day of Shabbos it is opened.

He draws on Yechezkel: the gate of the inner court stays closed through the six workdays and is opened on Shabbos — an inner opening that the weekday cannot reach but Shabbos can.

וכפי מה שהאדם דופק בימי המעשה.

And according to how much a person knocks during the days of work.

The degree to which the gate opens on Shabbos depends on how persistently a person "knocked" — strove and yearned — during the weekdays.

מכלל שנקרא דופק הוא שער הסגור.

From the fact that it is called "knocking," it follows that it is a closed gate.

The very term "knocking" implies a door that is shut — the weekday avodah is precisely this striving against a closed gate.

ועי"ז הדפיקה בחול הקב"ה פותח להם שער בשבת.

And through this knocking on the weekday, HaKadosh Baruch Hu opens a gate for them on Shabbos.

The reward for the weekday effort is that Hashem opens the inner gate on Shabbos, granting the closeness one labored toward.

וגם בימי המעשה נוכל לעורר בחי' השבת כמו שכתבנו במ"א לדייק הלשון ביום השבת יפתח.

And even on the weekdays we can awaken the aspect of Shabbos, as we have written elsewhere, by being precise in the wording "on the day of Shabbos it shall be opened."

One can draw the quality of Shabbos into the weekdays too. This is hinted in the exact phrasing "it shall be opened" (an active opening) rather than "it shall be open."

דהול"ל יהי' פתוח.

For it should have said, "it shall be open."

If Shabbos were merely a static open state, the verse would say "shall be open"; instead it says "shall be opened," implying an ongoing act of opening.

רק הפירוש שהשבת הוא מפתח לפתוח ההסגר גם בימי המעשה, כי שבת מעלה ימ"י המעשה לשורש עליון.

Rather, the meaning is that Shabbos is a key to open what is shut even during the days of work, for Shabbos raises the days of work to their supernal root.

Shabbos functions as a master key: it opens the closure of the weekdays themselves by lifting them up to their higher source, so that even ordinary days can share in its light.

שהוא מעין עולם הבא והוא התשובה שחוזר הכל לשורש העליון.

For it is a semblance of Olam Haba, and this is teshuvah — that everything returns to its supernal root.

Shabbos is a taste of the World to Come, and this returning of everything to its root is the essence of teshuvah (whose very meaning is "return").

וכ' אחת שאלתי כו' שבתי בבית ה' כו' פי' אם כל מבוקשי האדם רק אחת, יכול לעורר בחי' השבת תמיד.

And it is written, "One thing I asked… my dwelling in the House of Hashem…" — meaning that if all of a person's seeking is only "one," he can awaken the aspect of Shabbos always.

Dovid's "one thing I asked" teaches that when a person's every desire is unified into a single longing — to dwell with Hashem — he can draw the light of Shabbos into all his time.

כמו לעתיד יום שכולו שבת.

As in the future — "a day that is entirely Shabbos."

This anticipates the ultimate future, the era described as wholly Shabbos, when that openness will be permanent.

אעפ"כ בוודאי יהי' הפרש בין ימי המעשה לשבת, לחזות בנועם ה' הוא בשבת.

Even so, there will surely remain a difference between the days of work and Shabbos: "to behold the pleasantness of Hashem" is on Shabbos.

Still, the distinction is not erased. The serene "beholding the pleasantness of Hashem" — receiving His light at rest — belongs to Shabbos.

ולבקר בהיכלו הוא בימי המעשה. שצריכין עבודה כמו שהי' גם קודם החטא לעבדה ולשמרה כו':

And "to visit His sanctuary" is on the days of work — for they require avodah, just as it was even before the sin, "to work it and to guard it."

The weekdays correspond to actively "visiting His sanctuary" through avodah — effortful seeking. Even before the sin, man was placed in Gan Eden "to work and to guard," so labor toward Hashem is intrinsic, not merely a result of sin.

Summary: The inner gate to Hashem is shut on the six workdays and opened on Shabbos. The weekday avodah is the "knocking" — striving against a closed door — and the reward is that Hashem opens the gate on Shabbos. Yet Shabbos is also a key that lifts the weekdays themselves to their root, the essence of teshuvah as everything's return. When a person's whole desire is unified into one longing to dwell with Hashem, he can awaken Shabbos always; still, the calm "beholding of Hashem's pleasantness" remains Shabbos's gift, while the weekdays call for the active avodah of "visiting His sanctuary."