In the invitation to contribute to this volume on “religious education in a post-secular age”, the editors, with reference to the introduction in Sweden in the 1960s of a non-confessional and in that way ‘secular’ religious education (RE), express the opinion that the then ‘intellectual space’, ‘cultural situation’ and ‘intellectual fundament’ has been, as good as, totally eroded. © The Editor(s) (if applicable) and The Author(s), under exclusive licence to Springer Nature Switzerland AG 2021.