Sicha One. Class One. Introduction to the farbrengen: times change and opportunities vanish; you must not pass up an opportunity which will not be here tomorrow. In this case: the Kochos of the days leading up to Shavuous won’t be around forever, and we must use them while we have them. Page 167-9.
Class Two. Shavuos preparation: Achdus. Torah Achdus is deeper than simply getting along, it requires work (a discussion). Page 169-71.
Class Three. Simcha and Pnimiyus, Simcha is easier, the story of the Barditchiver Rebbe and SheLo Asani Goi. Page 171-2.