The four levels of Ohr Ein Sof (Mimalei, Sovev, Etzem that comes into Abba, and Atzmus itself) are explained here in the context of relating to Hashem. When we attempt to understand it is not Him we’re understanding, and He cannot be accessed without being changed by our very effort to understand Him. And what to do about this problem. Page 623-6, NEW SV p. 690-94.
