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A celestial library beneath a star-filled navy sky, featuring ancient books, an open I Ching manuscript, an astronomical armillary sphere and a glowing lantern. The imagery represents The Codex at Jillian Evelyn HD, bringing together True Sidereal Human Design, ancient wisdom, the sky, the body and shared discoveries.

The Codex: Guest Contributions

Voices of the Codex

The Codex brings together guest contributions from writers, researchers and independent thinkers exploring complementary fields of knowledge. Discover perspectives on True Sidereal astrology, numerology, the ancient I Ching, Greek mythology, archetypes and other teachings that deepen our understanding of ourselves and the world around us.

Where Would You Like To Begin?

There’s more than one way into this work. Choose what calls you.

Six mythic women gathered beneath a moonlit starry sky, representing the aura types and archetypal expressions of True Sidereal Human Design.
Ancient books labeled E-books, Journals, Guides, and Teachings beneath a celestial archway, representing Tools & Teachings.
Earth beneath a star-filled sky divided between Sun and Moon imagery, representing True Sidereal versus Tropical Human Design.
Woman seated before a glowing Human Design chart beneath a star-filled sky, representing Create Your Own Chart.

EXPLORE THE CONTRIBUTIONS

Have Something to Contribute?

a golden quill with scrolls beneath a starry sky representing guest posts and written contributions.

Have you made a discovery, noticed a pattern or experienced something worth sharing? The Codex welcomes thoughtful contributions from people exploring the sky, the body and the mechanics of human design.

Write for the Codex