The revelation of the teachings of Chabad Chassidus began with the Alter Rebbe on the 19th of Kislev and continued and increased with greater strength and greater vigor through all seven generations of its leaders. This includes in particular the founding of the Yeshiva Tomchei Temimim, the soldiers of the House of Dovid who go out to the wars of the House of Dovid to be victorious over those "who revile the footsteps of your Moshiach" and to bring into reality the revelation of Dovid King Moshiach.
The revelation comes to its fulfillment in our generation, which has already completed all the requirements, and the only thing necessary is "to open the eyes" and to see that "Behold he (the King Moshiach) comes."
From this we can derive a practical lesson:
In addition to this generation being the last generation of exile, the end of the exile, it is also the first generation of Redemption, the beginning of Redemption. We therefore find ourselves at an auspicious time connected to the Redemption. There should be a daily increase (connected to the lesson of Chanukah, that "from here on continuously increase") in matters that bring the Redemption into reality and into the open.
Among them:
- One must strengthen one's belief in, longing for and anticipation of the coming of Moshiach, to such an extent that as long as our righteous Moshiach has not yet come in reality and openly, one feels his life is lacking. As Yaakov said, even one hundred and thirty seven years were "few" because the Redemption had not yet actually come.
- Further and fundamental: One must increase in learning and spreading the inner teachings of the Torah (and Torah in general is Yaakov's function), oil (secrets of the secrets) of the Torah, in a way that they light "from the opening of the house on the outside," "your wellsprings will spread outward," "until the Tarmudites leave the market."
(From the talk of Shabbos Parshas Mikeitz, Shabbos (6th of) Chanukah, Evening Rosh Chodesh Teves 5752)