Page 31-2.
This Ma’amar which further explains the idea of the light coming from a higher level to a lower level through a series of havdalos (separations) where each consists of two steps: 1) removal of the Pnimiyus, 2) the Chitzoniyus lowers itself.
Here we discuss certain ideas that introduce this to a variety of examples we’ll be discussing in the next few Shiurim (pages).
1) 3 higher and 7 lower aspects, 2) When taking in you cannot give out, 3) Raisha La Istakein, the head has no garments (it is not subject to being reduced), 4) Sagi nahar, too much light makes one blind.