I
O GOAT-FOOT God of Arcady!
This modern world is grey and old,
And what remains to us of thee?
No more the shepherd lads in glee
Pan is the goat-footed god in classical mythology. His hand quarters and really everything below the waist is goat-like. Hence, he is the goat-footed god. Pan was not worshiped in temples of built structures, but outside in caves and grottoes: he is a natural god. 

Pan: A Double Villanelle