Harav Yaakov Tzvi Blejer Nefesh Hachaim 120 – Shaar 3, 9 Mussar and HashkafaNefesh Hachaim https://shiurim.kzmnmb.org/wp-content/uploads/audio/shiurim/2021/10/Nefesh-Hachaim-120-Shaar-3-9.m4a