@rxp A good metaphor maps a dynamic in the symbolic domain into the system being modeled.
"Look before you leap" is a good metaphor because it is actually a good idea to look where you're going before you jump in. And that translates to, you know, deciding on a romantic relationship or taking a job.
Lorde's metaphor is difficult because it's not like that. There's nothing intrinsic to the master's tools that make them unsuitable to dismantling his house.