And when you're done mourning, find a worthy target to take on and destroy.
There is no alternative but to take back the weak that was stolen from us.
And then use it to save whatever chunk of the world you can hold onto.
The Fall of Rome was liberation. This Fall will be too - but you've got to make it through the next decade somehow, and if a few jackholes are camping on all the wealth...
You burn their monastery to the ground and return home with their ill-gotten gold.