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.

Derech Mitzvosecha, Tiglachat Metzora.