The six pages in this section form the conceptual skeleton of Gnosticism. You do not need to read them in order, but the sequence above is the most logical path: start with what gnosis is, understand the core beliefs, see how dualism defines the Gnostic worldview, map the full cosmos, understand the divine spark, and then step back to see how all of it fits into the broader question of what Gnosticism actually is.
Every other section on this site — Mythology, Texts, Traditions, History — assumes familiarity with these six concepts. Return here whenever a term in another article needs grounding.