Seems to me that we can speculate forever and come up with all sorts of quasi religious/astronomical functions by lining any stones we choose to any stars we choose. The only firm facts seem to relate to the entrances which may align to solar and lunar setting/rising or jolly giants like FW's Orion or may just lead down to the river. On the ground, we need to think carefully about the archaeology - are there burials/cremations within the circles, what tools have been found, is there residual dung from a concentration of animals which you would expect from a corral?
The Neolithic seems such a weird place. I can understand the Palaeolithic so much better, but henges, circles, standing stones and above all - cursus and causeway camps!!!! Could be from the Planet Zog, because I just cannot get my head around them at all. The more I study them and listen to theories and speculations - the more my head hurts and the more confused I get.
Is anybody reading JackME's series on stone circles over on the Portal. I'm saying nothing because I can't make head nor tail of them?