Part of e-education in homoeopathy:e-book:aphorism no 11

When a person falls ill,it is only this spiritual,self-acting (automatic) vital force,everywhere present in his organism,that is primarily deranged by the dynamic influence upon it of a morbific agent inimical to life;it is only the vital principle,deranged to such an abnormal state,that can furnish the organism with its disagreeable sensations and incline it to the irregular processes which we call disease;for as a power invisible in itself,and only cognizable by its effects on the organism,its morbid derangement only makes itself known by the manifestations of disease in the sensations and functions of those parts of the organism exposed to the senses of the observer and physician,that is,by morbid symptoms,and in no other way it can make itself known.