In no point in his life did he undergo any dramatic change:

“I would say that for me at any rate, the process has been not a sudden Damascus road experience, but more like the journeying of Bunyan’s Pilgrim, who constantly lost his way, fell into sloughs, was locked up in Doubting Castle and terrified out of his wits in the Valley of the Shadow of Death, but still, through it all had a sense of moving towards light, moving out of time towards eternity “:

Malcolm Muggeridge Christ and the Media (1977)