First: Berdyaev: http://www.berdyaev.com/berdiaev/berd_lib/1926_308.html For the classical Greek Patristic fathers, Christianity was not only the religion of personal salvation. It was directed towards a cosmic apprehension of Christianity, it proposed the idea of the illumination and the transfiguration of the world, the deification of the created. Only later did the Christian consciousness hold in greater esteem the idea of hell, rather than the transfiguration and theosis of the world. This occurred, perhaps, as the result of the prevalence of barbaric nations with their fierce instincts. These nations needed to be subjected to severe discipline and intimidation, since their flesh and blood, their passions threatened ruin to Christianity and to every form of order in the world. Christianity, taken as a religion of a personal salvation from eternal perdition through humility, led to panic and terror. 2 Man lived under the horrible stress of terror of eternal perdition and would consent to anything, if only he might avoid it. The authoritarian system of obedience and submission created an affective emotion of the dread of perdition, a panicked dread of the eternal torments of hell. Under suchlike a spiritual arrangement, under suchlike a state of mind, a creative attitude towards life is very difficult. There is no time for creativity, when destruction threatens. The whole of life is put beneathe the sign of terror, of fear. When pestilence rages, and every second -- death threatens, man has no time for creativity, he is exclusively occupied by measures of salvation of the pestilence.
Second thought: Jenner and the Speckled Monster: The True History of Smallpox
https://www.newbraveworld.org/smallpox/