Sometime in the late second century a Christian theologian wrote this brief exposition of the true meaning of resurrection. Adopting the form of the didactic epistle, the unknown author addresses his remarks to an individual named Rheginos, who himself is also otherwise unknown. From the contents of the treatise we may infer that the author has been asked to supply a defense for the “advanced” position that resurrection for believers in Christ takes the form of a spiritual transformation, experienced by the intellects of those predestined to be saved, perhaps even in this lifetime. Neither the fleshly body nor its animating soul survives physical death, whereas the spirit-mind of the believer departs this material plane of existence for return to the heavenly realm called “the Fullness” (plērōma).