WoT If… Tam is One of the Hundred Companions Reborn? in Theory Blog Posted December 28, 2013 I think that they can have glimpses of their past lives--everyone one, not just Heroes of the Horn. Everyone has been reborn over and over and over. So, it's possible that sometimes they can remember fragments or memories from their previous lives. Mat remembers a big chunk of one of his previous lives (being Aemon, we assume) in The Dragon Reborn, Chapter 19, "Awakening." This is before he's gone to Finnland, so those memories are all his own.