Theories about Stonehenge for solstitial alignments in stonehenge and the timber circles at Durrington Walls and Woodhenge as well. Mike Parker Pearson also believes that the stonehenge was a monument of unification, bringing together different groups with different ancestries. He surmises that the five trilithons in the center of stonehenge could have symbolized five tribal lineages charting their descent from five original ancestors. The Preseli Hills might have had some ancestral significance for the stonehenge builders as well (perhaps this was their place of origin), this may have been the motive behind dragging the bluestones all the way from Preseli Hills to Wiltshire.
Theories about Stonehenge boulder was found in a long barrow at Heytesbury, which was built long before the stone settings at Stonehenge were installed. One current view is that glacier ice transported the stones as far as Somerset, and that they were transported from there by the builders of Stonehenge. Britain's Geoffrey Wainwright, president of the London Society of Antiquaries, and Timothy Darvill, on 22 September 2008, speculated that it may have been an ancient healing and pilgrimage site, since burials around Stonehenge showed trauma and deformity evidence: "It was the magical qualities of these stones which ... transformed the monument and made