Class One. The four letters of Shem Havaya (basically as explained in Likutei Torah Re’ei). Point, developed contemplation (י, ה). Above Havaya there’s Panim. When the Panim is joined with Havaya the revelation is healthy as it joins with the Source (essence).
Class One.
Class Two. When the Panim is disconnected from the Havaya, the problems start. Galus is the opposite of Havaya but ultimately reveals even higher. Tzadikim bring down Havaya. Baalei Teshuva bring down Vayahfoch Hashem Elokecha es haklala livracha. But Teshuva is not a Seder.