hiraeth (n.) a homesickness for a home to which you cannot return, a home which maybe never was; the nostalgia, the yearning, the grief for the lost places of your past.
I dream of walking by an abandoned storefront. The shop seemed to be there just a few days ago, but now for the life of me I cannot remember what it was. It is on the tip of my mind's tongue, but keeps fleeting when I try to focus on it. A deep sadness fills me for a place I can no longer remember.