Part of what I find compelling here is that grief, in so many ways, is a form of memory - like the thoughts, feelings, and emotions in one's body cannot let go of the pain of losing someone and the pain itself becomes a remnant of things past. This is why the seance, and Wildcat's search for both her sanity and closure, is so compelling and almost brilliant. The very act itself is beautifully metaphorical - the only way out of pain is through it - and thus the ending of the script feels of a whole new beginning.