13. VaEira 5735 (Edited Version) Sefer HaMa’amarim Milukat vol. 5.

13. VaEira 5735 (Edited Version) Sefer HaMa’amarim Milukat vol. 5.
Class One: This edited Ma’amar develops the ideas of the Divine names שד”י and הוי’ה; explaining that there are two (requisite) levels in שד”י the first is שאמר לעולמו די (Hashem’s used it to contain the creation), and the second is שדי באלקותי לכל ברי’ה (there’s enough in Godliness to provide sufficiency to the highest worlds and the lowest worlds).
The Ma’amar then explains that the Avos ‘only’ had שד”י and הוי’ה was given only to Moshe and Yidden getting the Torah, as it represents Godliness that is altogether above worldliness.
Class Two: Here the Rebbe argues that in the latter שד”י there already IS הוי’ה (it just isn’t as revealed) and moreover even the first שד”י has as it’s intent the full revelation of הוי’ה and as such already has within itself הוי’ה.
The Ma’amar finishes by adding that the true revelation of הוי’ה (where we see that it is already present in שד”י) will not be available to us until Moshiach comes when the הוי’ה revealed will be beyond a measure (higher even than הוי’ה which is מדת האמת).