This book, titled Ecclesia Mysteria, is intended to lay the foundation for a new spiritual community or congregation, which our tradition calls the Ecclesia. The Ecclesia can best be described as a contemporary spiritual congregation that remains faithful to the original Gnostic tradition of the Classical Sethian movement. The Ecclesia is a guide or path which leads its travelers on a journey of revelation. It is genuinely amoral in that we do not concern ourselves with moral codes or concepts, which change from decade to decade, but rather we focus on eternal things which cannot and do not change. These are the only things that really matter, and that should matter. This book is intended to fulfill three purposes: 1. It offers a Gnostic mythos that is both traditional and progressive. 2. It offers the reader a series of solo practices that can be put into practice immediately. 3. It will provide steps for those who wish to go beyond and join an actual community of Gnostics.