A lot of the icons in religion are nothing but met-physical processess of our mind.
The CADUCEUS is nothing but the 7-Chakra system culminating in the spiritual gateway that is your Crown chakra gateway.
Here in this image, you can see the Cuduceus super-imposed over the 7 chakra system
The reason the Illuminati use it for the field of Medicine is that they open the gateways into your mind , to make you accept their fake and dangerous medicines as being natural and needed for your body.
Your mind sees the Caduceus image over the medicines or the doctors office, and you will be in a state where you sub-consciously accept the treatment being offered to you, and allow them to tamper with your body and mind.
This is how they work.
The CADUCEUS is your auric healing and sustaining energy system. If its healthy, your body will never get sick. This system is a deep healing system, and will never let your body come to harm. By using this symbol, they by-pass your conscious filters, and enter your deep mind.