Editing Sadness (Atzvus) (section)

==== Sadness from Worldly Matters ====
One should accept whatever comes to him with joy, even if it appears to be something that is not good, in the same measure that he accepts the revealed and visible good. For this too - what appears to his eyes as bad - is for the good, only that it is not revealed and visible to the eyes of flesh because it is from the concealed world (alma d'itkasya) which is above the revealed world (alma d'itgalya).

For this reason - continues the Alter Rebbe - about those who rejoice in suffering, the verse states, "But those who love Him are like the sun rising in its might." This is because the joy comes from loving Hashem's closeness more than all the life of this world, as it is written, "For Your kindness is better than life," etc. And the closeness of Hashem is with greater intensity and elevation without end in the concealed world.