Every concept that has ever existed is inside you. It’s not personal. After all these thousands of years, the same thoughts are still in each of us, waiting to be met with some friendship and a little understanding finally, rather than with pills and running and hiding and arguing and sexing, because we don’t know what else to do with them.
– Byron Katie
When she says “every concept”, what fits for me is every painful basic concept such as she doesn’t love me, I did something wrong, they will judge me etc. And they are only painful when they are seen, felt and lived as true. We learn those, at least most of us, at a very young age.