ghostalgia n. (ghost + Gr. algos, pain, grief, distress; cf. nostalgia) Ð a mystical longing or wistful affection for ghosts, angels, miracles, aliens, and other otherworldy characters and mysterious phenomena.
Ghostalgia is a form of nostalgia in that we experience the other world as our genuine lost home.
I am agnostic, but sometimes I feel ghostalgic.
On the eve of deep historical crises, ghostalgia can grip the souls of entire nations.