The August Break '16: beneath my feet

Day 7/31 of  The August Break, hosted by Susannah Conway. Today's prompt: beneath my feet.
Beneath my feet today, and for the next seven days, is some of the oldest rock in the world; Lewisian Gneiss . We have travelled by road and sea to the Western Isles, for a family wedding. We are staying in Stornoway, where I was (briefly) at boarding school thirty four years ago. When I left a few days after finishing 6th year at school, it was with no desire ever to return.
Time, and circumstances, however, change our outlook, and I am happy and intrigued to be here, looking forward to exploring and re-discovering this beautiful place. The knowledge that the rock under my feet the rock is some three billion years old, makes our human squirmings and frailties seem very insignificant and temporary, which is rather comforting.