Originally Posted by arsenalforever
And how does she exactly plan to end the Force using the Exile?
The same thing that happened to the Exile, but to force it on anyone who can feel/use the force. To create an echo so large, it is felt by all, forcing them to either sever their connection to the force, or die in the attempt.
As for what an echo is, it seems to be almost any event, but the sort wanted here is of the traumatic sort. Such as Malachor, when the Exile stood on the bridge of a ship, watching as those around Malachor where sucked into the planet's gravity well, destroying them and killing their occupants. Being so close, being able to hear it so loudly, the Exile needed to abandon the force, to survive, if nothing else.