נתת ליריאך תשי”א.

The difference between בירורים and נסיונות. Birurim correct both the person and the object one is dealing with. נסיונות are so deep a test from so deep an evil that the good within has become evil. Accordingly, the correction is in the person alone because the item being corrected has no reality as it is all קליפה. In this מאמר the רבי adds that there must be an elevation in the קליפה even in נסיונות. This idea appears in the Rebbe’s Ma’amar but not in the previous Rabbeiim’s Ma’amarim.