Mortal beings with eyes and faces are often regarded as the ONLY things with consciousness. Sickness has an intelligence and a survival instinct, too. It highjacks it’s host to further it’s agenda. Hence why smokers billow out clouds of smoke and scatter the shells of cigarettes about like seeds of destruction.
Sensing it’s demise, the illness makes the host sick when it loses it’s control or grip on the host. You know this better as withdrawal.
Energy and spirits are real, though more simple and mundane in occurrence, their dynamics are subtle and well designed, existing without our input.
What a wonderful jungle we play in!