I think it's the excuses we all make to ourselves about why we shouldn't take emotional or everyday risks anymore - it's almost safer to pretend something definitely won't work even though you may know there's a good possibility that it will. I suppose, a defense mechanism. "now my imagination is the only thing that limits" - she is admitting her thoughts in her head are her only restriction on why her happiness and quality of life aren't better.
I think it's the excuses we all make to ourselves about why we shouldn't take emotional or everyday risks anymore - it's almost safer to pretend something definitely won't work even though you may know there's a good possibility that it will. I suppose, a defense mechanism. "now my imagination is the only thing that limits" - she is admitting her thoughts in her head are her only restriction on why her happiness and quality of life aren't better.