Over a hundred years ago, Rudolf Steiner
wrote the following:
With such a vaccine, you can easily make the etheric body loose in the physical body. Once the etheric body is detached, the relationship between the universe and the etheric body would become extremely unstable, and man would become an automaton, for the physical body of man must be polished on this Earth by spiritual will. So, the vaccine becomes a kind of arymanique force; man can no longer get rid of a given materialistic feeling. He becomes materialistic of constitution and can no longer rise to the spiritual.
Therefore, those who know want to set their foot on the neck of this national element and strip it of all spiritual endeavour, which of course lives equally in all human beings. Just because karma has ordained that the conscious Soul should work here (in GB) particularly strongly, the secret brotherhoods have sought out elements in the British national character. Their aim is to send a wave of materialism over the Earth and make the physical plane the only valid one. The spiritual world is to be recognised only in terms of what the physical plane has to offer."
Rudolf Steiner (1861-1925)