﴿ وَأَنَّا لَمَسْنَا ٱلسَّمَآءَ فَوَجَدْنَٰهَا مُلِئَتْ حَرَسًۭا شَدِيدًۭا وَشُهُبًۭا ﴾

“"'And [so it happened] that we reached out towards heaven: but we found it filled with mighty guards and flames,”

The jinn who heard the Quran not only accepted it immediately, but also became its propagators. This shows that whenever a true discourse reaches the ears of living people, it creates a two-fold effect—first, an open-hearted admission of its truth and second, a willingness to propagate its teachings.