Preparation to the Lesson

1st part of the Lesson — Writings of Baal HaSulam, Shamati #113 “The Eighteen Prayer” (12.22.2021)

2nd part of the Lesson — Writings of Baal HaSulam, “Study of the Ten Sefirot,” Vol. 1, Part 4, Chapter 2, Item 1

3rd part of the Lesson — The Book of Zohar, “Beresheet – 1, ‘The Brightness of the Firmament'”