This matter receives the utmost emphasis in this year - 5751, whose mnemonic is hinted at in the verse "his kingship will be exalted" (referring to Dovid and Shlomo, since King Moshiach will be from their offspring) over the entire world. The importance of this year is also alluded to in the year's acronym, "It will be a year in which I will show him wonders," as in the verse "as in the days of your going forth from the land of Egypt I will show him wonders."
The year began with the "wonders" which were actually seen (in addition to those which will be seen in the future, "I will show you") and revealed to the eyes of the whole world. These wonders fulfilled the words of the Yalkut Shimoni: "In the year the King Moshiach will be revealed, the kings of all the nations of the world will struggle with each other... the king of Persia etc., the Arabian king, etc.; And (G-d) will say to them (Israel), 'My children, do not be afraid, all that I have done I have done only for your sake... The time for your Redemption has arrived!' From that time on (particularly in the month of Nissan, the month of Redemption) we are already standing at the time 'When the King Moshiach comes ("behold he comes")... and will proclaim to Israel, 'Humble ones, the time for your Redemption has arrived!"
...But action is the main thing:
Since this is the Shabbos after the giving of the Torah, Parshas Naso, in the year of I will show him wonders, it is a time particularly ready and appropriate for the revelation of "a new Torah will proceed from me."
This means that the practical lesson is that this is the set time to prepare (a sample and example of) the new dimensions of Torah to be revealed that will ultimately lead to the actual fulfillment of the promise "a new Torah will proceed from me."
Simply put, there should be a renewal and increase in learning Torah with vigor and delight, until one originates new insights, whether for one's self or to have an effect on others, "Raise up many disciples."
For it is known that "Every one of Israel is able to reveal secrets of wisdom and to discover a new insight in Torah, whether in homiletics or in the revealed or in the esoteric parts of Torah, according to the level of his soul's root. Indeed, one is obligated to do so."
This includes particularly a renewal and intensification in learning and spreading the inner teachings of the Torah that are revealed in Toras Chassidus, a sample, example and "taste" of the Torah of Moshiach ("those who taste it shall merit life"). Through this we will quicken, hasten and achieve the coming of Dovid, the King Moshiach.
References
15. Avos, Chapter 1, Mishneh 17 (in gematria, "good") - that is learned on this Shabbos. [The number 17 in Hebrew can be formed from the letters of the word "good." See also note 6a. Translator's note.]
16. See Yeshayahu 51:4: "For Torah will proceed from me." And in Vayikra Rabba 13:3: "A new Torah will proceed from me, a renewal of Torah from me will proceed." This is explained at length in the talk of the second day of Shavuos (Sefer HaSichos 5751, p. 566 and following).
17. Avos Chapter 1, Mishneh 1.
18. Tanya, Igeres HaKodesh, section 26 (p. 145a).
19. See Likkutei Sichos, volume 20, page 173. And see there for cross references.
20. Igeres HaKodesh of the Baal Shem Tov - section 309 at the beginning.
