019 – Cheshvan 19 - Igeres HaKodesh, Chapter 29 – י"ט חשון – אגרת הקודש פרק כ"ט

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

This shiur explains the Alter Rebbe's letter on why halachos are called "the crown of Torah" and why one who studies halachos daily is assured of the World to Come: every soul must fulfill all 613 mitzvos in thought, speech and action, which become the garments through which the soul receives Divine light.

https://www.torahrecordings.com/tanya/regularyear/002/019