Almost without exception, ancient and medieval scholars believed in the arcane doctrines of wisdom . . .The four elements of our fathers, earth, air, water, and fire, contain for the student of alchemy and ancient psychology-or, as it is now termed, magic-many things of which our philosophy has never dreamed.
Introduction to Chapter 6 of Isis Unveiled
In this chapter, Helena discusses more about magnetism and animal magnetism - basically our primal self and spiritual self AND the "groundlessness of magic being superstition and sorcery" with her findings.
Basically, she is reminding us that we are Gods and Goddesses in embryo.