 It is the inquiry into “cultural products [Erzeugnisse]” of the “totality of spiritual life [geistiges Gesammtleben] in which certain psychological laws have embodied themselves”, specifically, language, art, myth, and customs (Sitten) (PP I: 5; L III: 230). These objects cannot be investigated in the same way as those of individual “inner” experience, but require a mode of explanation appropriate to their external, yet non-physical phenomenology. This inquiry, which complements and together with experimental psychology completes the discipline of psychology, Wundt calls “Völkerpsychologie” (hereafter abbreviated: VP) (L III:  225).[44]