A Facebook session or a Spiritualist seance? Can you tell the difference?
One wishes to make contact with a distant friend, lover, or acquaintance who has departed from one's life. Via means one doesn't fully understand, one seeks a message, albeit oddly spelled or worded, or at least some sort of flickering notification that said entity possesses at least a modicum of sentience in that other place.
a: Spiritualist seance
b: Facebook
c: indistinguishable
[Hint: the answer, like the ocean of consciousness we seek to navigate and commune with, rhymes with the sea.]