The homeopathic notion of the Vital Force is a spirit-like essence that animates a living organism.  In homeopathy, disease is considered to originate as a disruption of the vital force.  Symptoms produced are thought to reflect the nature of the disruption. 

 

Hahnemann states: "The material organism, without the vital force, is capable of no sensation, no function, no self-preservation, it derives all sensation and performs all the functions of life solely by means of the immaterial being (the vital principle) which animates the material organism in health and in disease."