Kuntres 25 Adar was published in honor of the birthday of the Rebbetzin Chaya Mushka, which in a regular year (not a leap year) comes out around parshas Pekudei.
The discourse is based on the posuk “these are the accounts (pekudei) of the Mishkan, the Mishkan of testimony, which was counted at the command of Moshe”. The discourse discusses the difference between midos, which are essentially for another person (the mida of Chesed, for example, involves giving to someone else), and the intellect, which is essentially for the individual alone. Midos are inherently revealed (even when they are still hidden in the heart), whereas intellect is inherently concealed (even when it is being given over to another).
This distinction is related to the difference between the two times “Mishkan” is mentioned in the verse, which also corresponds to Torah and Mitzvos as compared to Tshuva, which find expression in two levels of Tshuva (lower and higher). In addition, the verse mentions Moshe, who is the aspect of self-nullification (bittul) which unifies the two levels. Worthwhile to see the maamor inside.
Most noteworthy to us is probably the following section of the maamor:
… We can explain what is stated in Likkutei Torah [about this verse], that “pekudei” also has a meaning of “to be impregnated” and “seclusion”, as the sages say “a man is obligated to be with his wife [before departing on a journey]”. It is explained elsewhere in Chassidus the [three marital obligations of providing] “her food, her wardrobe, and her marital relations (onasah): her food (nourishment) is giving over something that enclothes itself in the vessel of the recipient; her wardrobe (clothing) surrounds, which is a higher level; and onasah is giving over the essence, which is higher than the surrounding level of garments.
And we can add that the special quality of onasah is not only as regards a bestowal from above (that onasah is the giving over of the essence), but also as regards Yisroel, that they receive this bestowal not through a garment. And we can say that this is what is meant by or sages when they said that “one who says ‘I [make a condition that our relations will take place with me] in my garment and she in her garment’ has to divorce and pay the kesuba”: that the negation of “I in my garment” is because the bestowal from Above is without a garment, and the negation of “she in her garment” is because receiving the revelation is not through a garment.
Here, as the Rebbe begins the year-long series of revelations of the year 5751-52, right at the beginning of the year-long cycle of Dvar Malchus, there is a clear statement about what is and will happen. The “husband” (the Rebbe) is about to “go overseas” (at least visibly and audibly) and therefore he is going to fulfill his halachic obligation to “be with his wife” (the Chassidim) and give over the essence, the atzmus which is higher than either Sovev or Memaleh, and transcends intellect and emotion. How must this be done? “Without garments”, which in Chassidus refers to thought, speech, and action — without the familiar reference points, a completely different manner than the way the husband and wife relate the rest of the time.
The hint should be clear now (though surely it was not clear in 5751): the Rebbe in these Sichos and maamorim is giving over Atzmus — the essence of everything — before “going away for a while”* (at least in a revealed way). And this creates a state of pregnancy, which leads to birth: a moshol for the true and complete Geuloh!
* There are those who tell of being at a Simcha with the Rebbe’s mazkir R’ Binyomin Klein in 5754 (1994), when after a few lechayims R’ Klein revealed that the Rebbe had told him, shortly before Chof-Zayin Adar that he will be “going away for a while.” (“איך גיי אוועק פאר א וויילע”) [heard from Mrs. Klar, who heard it from that mother of one of the bachurim who was there.]