I fancied a lazy day and so myself and my partner headed down to the visitor's centre at Glendalough - we've been to the place many times but never bothered with the centre itself until now.
I kinda wish I hadn't! A little sign in there by a bullaun stone said that they were probably for grinding grain and that later belief held that the waters collecting in them could cure warts etc. It then went on to state that Glendalough has over 30 bullauns many of which are along an ancient road, now called St. Kevin's Way, which links Glendalough across the Wicklow Mountains to Hollywood (yeah!) on the west of the range.
I found the first statement and the second fact to be totally contradictory. Why, if they were for grinding corn, would they be spread along an ancient pilgramage route?
Anyway, I've seen about 7 of the bullauns around there, so guess what my winter months will be spent trying to do:-)
Oh and I think I may have found a bit of a proto temple today - a series of 'natural' stone circles and a huge quartz boulder 'proto altar' ... hhmmmm