So I'm guessing that Harpy finds the simplicity of this image, the convergence of two of God's magnificent creations (The feather & the stone), the juxtapose of the strength of the stone and the delicacy of the feather, and the visual layout to be in its own ways attractive, either as a metaphor or as simply a picture.
Alternately this may be a reference to the old quote about the difference being the using of a whole chicken when a feather will do.
Either way, points for outside the box...
However, points forfeited if you now fail to provide a satisfactory explanation to go with this post, Harpy.
And yes, these are the arbitrary points that only I keep track of and that you may never know your balance on, but some day may attain enough points to cash in for a brownie.