Class 43, Perek 3, Class 13. Tanya (text based)

נה”י continued. נצח and הוד fight with an opponent. יסוד does what needs to be done and has no opposition. The idea that the lower the level of the נפש, the higher its source, and in this case it is the idea that נה”י are connected to the עצם הנשמה more than חב”ד וחג”ת. This is idea of וגם נצח ישראל לא ינחם ולא ישקר כי לא אדם הוא להנחם. The very essence power of the person is revealed in the נה”י.