A little more than four years ago, I wrote something very similar:
In their beautiful singing of “Something sings,” the boys of Libera sing, “But in the dark and cold of things, there always, always something sings.” In the Land of Aloha, something always sings within me. Something sings from the blue skies, from the rainbows, from the joyful Hawaiians, from the deep waters, from the forests and from the mountains and stars. Somethings sings, calling to me.What is it that sings in Hawaii? You'll have to read the original post.
It is something I cannot fully put into words, and I feel it most deeply in Hawaii.