I agree with some of the discussions that have been on here recently that reconciliation is an important theme in the Bible. I think, however, it may just be a subset of a larger, grander theme in Scripture... Restoration.
Let me preface my explanation by saying that I was recently listening to some audio (free at the link) from N. T. Wright. Wright is currently the Bishop of Durham in the Anglican Church but is also one of the foremost authorities of the historical Jesus and historical Paul.
One theme that runs throughout is the theme of restoration, ultimately ending up in, not heaven but the restoration of a new heaven and a new earth (Revelation 21 & 22).
This theme is shown through types and shadows in the Bible. For instance, Jesus in the Garden after his resurrection shouts of restoration of the fallen Garden of Eden.
