Harav Yaakov Tzvi Blejer Nefesh Hachaim 097 – Shaar 4, 28. Mussar and HashkafaNefesh Hachaim https://shiurim.kzmnmb.org/wp-content/uploads/audio/shiurim/2021/07/Nefesh-Hachaim-097-Shaar-4-28.m4a