। ॥ १३३ ॥
In plain words
By this means the mind drops its own bad habit and, little by little, takes on peace. Those who know what actually marks mokṣa call it just this: the mind coming loose from external things.
Close to the Sanskrit
By that, having wholly let go of its own badness, the mind, slowly, slowly, takes on peace. Precisely the mind's release from external objects — that the knowers of liberation's defining mark know as liberation.