In Pannenberg: A Guide for the Perplexed, Bradshaw explains Wolfhart
Pannenberg's thought, in which theology is not separable from a
"secular" philosophy, along the grain of his development. Key texts are
used for this, and difficult ideas, such as his notion of
"retroactivity" from the future back through the past and present, are
addressed in the context of Pannenberg's overarching view of things. His
doctrines of the Trinity, his view of simultaneity and human
development, as well as his engagement with the natural sciences are
major areas that are given attention. How the ideal is instantiated in
the real, or how the real is the rational, is argued as a clue to his
system.