Okay. So this is an extract from the briliant TSoT transcript by Ariane Devere with some of my notes added and text of particular interest both highlighted in bold.
I can’t help but wonder if this section of TSoT isn’t a crucial bit of the puzzle for what’s coming beyond HLV. It’s filled with signposts. And it comes about because for all the talk of mirroring - esp in a Johnlock sense - in TSoT, the one that’s had the least attention (from what i’ve read; i may have missed a meta somewhere that addresses this) is that the Mayfly Man is perhaps a mirror, not for John, but for Mary. Much of this then lands in broadly speaking the same territory as loudest-subtext-in-television's far more extensive M-theory on TSoT. But for me this is a shorter route - a different path on the way to the same ultimate end. It's just a different angle from which to play the same game.