The single most consequential decision in The Tree is structural rather than doctrinal. Buried within an otherwise conventional book of ritual, calendar and correspondences is a Self-Dedication Rite, a ceremony a reader can perform entirely alone, with no coven, no initiator and no prior contact with any other Seax-Wica practitioner, to become a full priest or priestess of the tradition.
That single rite inverted the logic Buckland had operated under for a decade as a Gardnerian high priest, where authority to practice could only be transmitted person to person and a solitary seeker had no legitimate way in. Seax-Wica, by contrast, treats the book itself as sufficient. Anyone who reads The Tree and performs the rite it describes is, by the tradition's own stated terms, exactly as much a priest or priestess of Seax-Wica as anyone initiated by another already practicing.
The book is direct about the rest of what it sets out too, describing the tradition's degree structure, its holidays and its working tools without withholding material as oathbound or secret, a stated choice consistent with the self-initiatory design. A tradition built to let a solitary reader join without anyone else's permission has little use for material only a lineage-holder is allowed to see. The Tree's completeness and its accessibility were, for Buckland, the same design decision seen from two angles.