She might know the other language actually. I'm not an expert but asking the therapist that runs the hypnosis would know the answer (if they had a patient with

She might know the other language actually. I'm not an expert but asking the therapist that runs the hypnosis would know the answer (if they had a patient with a previous life in another language). My feeling is that what the person remembers are feelings/emotions and images in her head from the previous life, these images and emotions are explainable/translatable in any language.