The ancient structure of the "Cairn L" remains a mystery. The most unusual aspect of the monument is a tall pillar stone within the chamber known as the "Whispering Stone." This limestone pillar is two meters tall and gives the impression that the whole chamber and cairn were built to house it. Below is an illustration of the interior. This drawing, from c 1870, is by Eugene Conwell, who discovered the structure.
Oi wus doin’ a line me lassy under de moon whaen de sun vanished loike a banshee in de noight.

 Within the chamber of Cairn L The art and basin can be seen in the recess to the right, guarded by the Whispering stone, a mysterious limestone pillar. The green is a growth on the stones. Photo Padraig Conway. http://www.carrowkeel.com/sites/loughcrew/cairnl.html
 Within the chamber of Cairn L The art and basin can be seen in the recess to the right, guarded by the Whispering stone, a mysterious limestone pillar. The green is a growth on the stones. Photo Padraig Conway. http://www.carrowkeel.com/sites/loughcrew/cairnl.htmlThey told their wives they saw the sun disappear during the day and the women said to the Irishman.
YOU WERE DRINKING AGAIN!
Fascinating! We were just at Newgrange and Knowth a few weeks ago.
I found this video on youtube of the sunrise on the Whispering stone, and it slides off at the end to the rock next to it.
I wonder if the ancients thought that magical light or entity as they may have seen it entered that basin there, and if it was full of water now considered as holding a magic spirit?
Or something to do with that light moving across the room and toward that basin with all the cryptic symbols above it. Was their place of wonderment, magic, something...
https://www.youtube.com/watch?v=3SF8k6kCtBs
Thank goodness the Irish aren’t as dangerous as they are annoying.
 
  If the the sun were on the left in an eclipse it would make a CONCAVE shape but this drawing shows what appears to be a larger circle on the left with a CONVEX shape. The only answer I could come up with is are we to believe the body on the left, even though drawn as a larger circle, is supposed to be the moon? Would this represent their importance placed on the moon? Otherwise, this glyph makes no sense.
 If the the sun were on the left in an eclipse it would make a CONCAVE shape but this drawing shows what appears to be a larger circle on the left with a CONVEX shape. The only answer I could come up with is are we to believe the body on the left, even though drawn as a larger circle, is supposed to be the moon? Would this represent their importance placed on the moon? Otherwise, this glyph makes no sense. 