What does harrowed mean?

A Harrow is a farming implement that literally tears soil or sod to shreds to aerate the soil. It features numerous hooked steel tines. Any farming accident involving a harrow would leave horrific injuries. That, and its action of tearing the soil violently and in dozens of places at once is the origin of the other meaning, which is to be distressed or beset in such a way as to be torn to pieces, figuratively speaking. One might describe a police interrogation as harrowing or being harrowed. One might describe a particularly divisive and financially disastrous divorce as harrowing.