Because you did not serve G‑d your G‑d with joy and gladness over the abundance of everything. (Deuteronomy 28:47)

Imagine you were just bequeathed a treasury containing most of the world’s wealth.

Imagine the thrill coursing through your veins, the celebration you would throw.

That is the joy of a single mitzvah.

Rabbi Isaac Luria, the Ari.