Even this, though, when Scrooge looked at it with increasing steadiness, was not its strangest quality. For as its belt sparkled and glittered now in one part and now in another, and what was light one instant, at another time was dark, so the figure itself fluctuated in its distinctness: being now a thing with one arm, now with one leg, now with twenty legs, now a pair of legs without a head, now a head without a body: of which dissolving parts, no outline would be visible in the dense gloom wherein they melted away. And in the very wonder of this, it would be itself again; distinct and clear as ever.
The description of The Ghost of Christmas Past from Charles Dickens’ “A Christmas Carol.”
I’m always sad how everyone forgets that one of the defining qualities of The Ghost of Christmas Past was it vibrating and twitching parts of itself in and out of reality like something out of Jacob’s Ladder or Silent Hill…
Therefore, Thatcher would be a clue leading to John’s father, so John’s family and how John lives his own sexuality. Which is amazing: the show really continues his mission to highlight the suffering of the LGBT community. Moreover, John overcoming the issues linked to his past and stating his own true sexual orientation is key for Johnlock. =)