If someone genuinely believes that them knocking on your door and talking to you could actually save your soul in the afterlife
The act of knocking on one’s door is annoying but ultimately innocuous, true, but that ideology is a slippery slope. How better to write yourself a blank check that absolves you off your heinously cruel actions than to delude yourself with the belief that you’re acting on some holy mandate from sky daddy? The Salem witch trials and the crusades jump to mind as stark examples of religion carried to its inevitable endgame.