Sexual Object, Unfit Substitutes for
The substitute for the sexual object is generally a part of the body but little adapted for sexual purposes, such as the foot or hair or some inanimate object (fragments of clothing, underwear), which has some demonstrable relation to the sexual person, preferably to the sexuality of the same. This substitute is not unjustly compared with the fetich in which the savage sees the embodiment of his god.
The case becomes pathological only when the striving for the fetich fixes itself beyond such determinations and takes the place of the normal sexual aim; or again, when the fetich disengages itself from the person concerned and itself becomes a sexual object. These are the general determinants for the transition of mere variations of the sexual instinct to pathological aberrations.