The Baal Teshuva Movement - Agudath Israel of America

 https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjYou-Umb30AhUJh_0HHaQZCvYQFnoECBYQAQ&url=http%3A%2F%2Fagudathisrael.org%2Fwp-content%2Fuploads%2F1980%2F09%2FJO1980-V14-N09.pdf&usg=AOvVaw13PQz_W4zuGSgcCh65G8rZ

 1 heard from Rabbi Yoseif Kahaneman, the late Ponevezher Rav 7"~n, that in the course of the Hitler holocaust a million pure souls of innocent Jewish children,cheder children, were lost. Since then, their souls hover in the world, trying to find bodies into which they can enter in order to continue their interrupted lives. Thus pure Jewish souls are transfigured in the chozrim biteshuva of our days.