155. As they desired to know how it is with regard to revelation on our earth, I said that it is effected by writing and by preaching from the Word, and not by immediate interaction with spirits and angels; and that what is written can be printed and published, and be read and comprehended by entire communities, and thus the life may be amended. They wondered greatly that such an art, entirely unknown elsewhere, should exist here. But they comprehended that on this earth, where corporeal and earthly things are so much loved, Divine things from heaven cannot flow in and be received in any other way; and that it would be dangerous for them to speak with angels.