Harav Yaakov Tzvi Blejer Nefesh Hachaim 098 – Shaar 4, 28 Mussar and HashkafaNefesh Hachaim https://shiurim.kzmnmb.org/wp-content/uploads/audio/shiurim/2021/07/Nefesh-Hachaim-098-Shaar-4-28.m4a