I can testify from much experience that it is impossible to
implant the life of heaven in those who in the world have lived a
life opposite to the life of heaven. There were some who had believed
that when after death they should hear Divine truths from the angels
they would readily accept them and believe them, and consequently
live a different life, and could thus be received into heaven. But
this was tried with very many, although it was confined to those who
held this belief, and was permitted in their case to teach them that
repentance is not possible after death.
-- Swedenborg