029 – Tishrei 29 - Igeres Hakodesh, Chapter 25 – תשרי כ"ט - אגרת הקודש פרק כה

From Tanya - regular year - Rabbi Chaim Wolosow by R Chaim Wolosow.

This shiur discusses how, despite G-d's absolute unity, the vitality that emanates from Him is differentiated into four levels corresponding to the four worlds of Atzilus, Beriah, Yetzirah, and Asiyah. The distinctions arise through contractions and concealments, yet the Divine essence remains unchanged.

https://www.torahrecordings.com/tanya/regularyear/001/029