Wife of the fifth Lubavitcher Rebbe, Rabbi Sholom DovBer Schneerson, and mother of the sixth Rebbe, Rabbi
Yosef Yitzchak, Rebbetzin Shterna Sarah (1860-1942) lived through the upheavals of the first half of the 20th century. She fled the advancing front of World War I from Lubavitch to Rostov, where her husband passed away in 1920 at age 59. In 1927, she witnessed the arrest of her son by Stalin's henchmen the night he was taken away and sentenced to death, G-d forbid, for his efforts to keep Judaism alive throughout the Soviet empire.
After Rabbi Yosef Yitzchak's release, the family resettled in Latvia and later, Poland; in 1940, they survived the bombing of Warsaw, were rescued from Nazi-occupied city, and emigrated to the United States. Rebbetzin Shterna Sarah passed away in New York on the 13th of Shevat of 1942.
On January 27, 1945, the Russian army arrived in Auschwitz, the most infamous of the Nazi death camps, and liberated some 7,000 survivors—those left behind as unfit to join the evacuation "Death March."
Why must we have jobs? Why can’t our bread fall from heaven?
It does. Our bread is manna from heaven. But it bursts forth from Above like a solar flare—a light far too intense for any world to contain.
So, in each world in the chain of spiritual worlds that extend from above to below until our earthly realm, the beings of that world must labor to absorb that light. Only then can the light descend to the world that follows theirs in the chain—and there yet another form of labor is required, according to the limitations of that world.
Until the light arrives at our world. And here we must do the work that our world requires so that it, too, may absorb the light.
And that is why we each have our worldly occupations.