Somewhat like the navi’im (biblical prophets) of old, someone comes along who’s tapped into a high level connection (or the higher levels tap into someone as a channel – who knows how it works) and there’s a great download of holiness and Torah…in a big bundled almost unhandlable outflow. Like a personal flash of brilliance in a new idea, this load of holiness is the bright glowing more-direct-than-usual influence of G-d on the world…but not yet easily consumable.
Then, consistently, a short time later along comes a special soul who grabs on to the load of holiness and harnesses it to the standard frameworks of Torah. They codify it, organize it, systematize it, and align it with the existing bodies of Torah knowledge.
The last such explosion of Torah was from the Baal Shem Tov and what today we call Chassidus. The Maggid of Mezerich organized it, and the first Lubavitcher Rebbe – the Alter Rebbe, the Baal HaTanya, codified, systematized, and aligned it. The results of this effort are two monumental works of Chassidic thought…the Tanya and Likkueti Torah/Torah Ohr.
For doing this holy work the Alter Rebbe was attacked, imprisoned, and sentenced to death. On Yud Tes Kislev he was vindicated, released, and his codification fully released to be taught to all. Or to put it another way, Chassidic thought was attacked and then freed.
On Yud Tes Kislev Chabad chassidim celebrate the release of the Alter Rebbe from his death sentence and prison, and the release of the codification of chassidus into the Jewish world.
And we say to the Alter Rebbe, L’chaim! While we learn your Torah – the Torah of Chassidus, we await the final revelation, that of Moshiach tzidkaynu. May it be mamash today.