...well why not. Whacky ideas are fun so here’s one to add to the stack...
Why are so many of the Welsh cromlech capstones shaped and positioned as they are – that is with the thin pointy end pointing downwards while the fatter end points upwards (the fatter end also being the entrance to the cromlech which might be relevant to this item of wackiness).
Standing recently, and directly under the pointy end of Carreg Samson, it’s striking how symmetrical it is and, in profile, how much like an arrowhead it is (the resemblance to an arrowhead is really pronounced with the capstone at Pentre Ifan). Knowing what we know about early concepts of the underworld (especially in relation to water) is it stretching the imagination too far to suggest that these arrowhead-shaped capstones might be sending (shooting :-) the spirit(s) of the departed to a chosen place in the land or sea?
Then again I might still be living Robin Hood’s last request to be buried where his arrow fell – made me cry that did, and I was only six or seven when I first read it :-(