Preparation to the Lesson Lesson on the Topic “The Ruin as an Opportunity for Correction” Writings of Baal HaSulam, “Introduction to the Book Panim Meirot uMasbirot”  Writings of Baal HaSulam, “Study of the Ten Sefirot, Vol. 1, Part 3,” “Inner Observtion,” Chapter 10, Item 1 Selected Highlights