That had been one of his last good days. After that the old man spent more time sleeping than awake, curled up beneath a pile of furs in the captain’s cabin. Sometimes he would mutter in his sleep. When he woke he’d call for Sam, insisting that he had to tell him something, but oft as not he would have forgotten what he meant to say by the time that Sam arrived. Even when he did recall, his talk was all a jumble. He spoke of dreams and never named the dreamer, of a glass candle that could not be lit and eggs that would not hatch. He said the sphinx was the riddle, not the riddler, whatever that meant. He asked Sam to read for him from a book by Septon Barth, whose writings had been burned during the reign of Baelor the Blessed . Once he woke up weeping. “The dragon must have three heads,” he wailed, “but I am too old and frail to be one of them. I should be with her, showing her the way, but my body has betrayed me.”
Was Aemon having that Targ Dreams? Did he foresee Sam's encounter with the Sand Snake in Old Town? Or is this a much older prophecy dreamt by another member of his family or something taken from the book. I kind of doubt this pertains to Alleras due to Aemons desperate need to be there to support Danny. I want to lean on the idea this has more to do with the Targ Dynasty and or The Prince That Was Promised. One could even say Jon is the Sphinx due to be a little bit of a Targ / Start / Wildling etc.. You get where im going.
What do most of you think this sentence means.