He says, "you realize all of us in our host are here because of certain people. I'm here because I care about Chet, and he cares about you." Immediately afterwards, he turns into Spike. (Unbeknownst to Lakuna or Dr. Sullivan, Chet had asked Charles to perform the ritual to change Benoit into another form, and Charles complied).
She asked why Dr Sullivan appeared and he answered that it was probably "the Doctor" in him. He couldn't just let someone die of poisoning. Then Lacuna asked what he meant when he said that he was aware of things while in "his host", and if that was why he knew her name. (That's the second time one of Benoit's personalities has mentioned that, the other was Lacuna's granddad.)
He answered that it is like fragments of a dream, bits that filter in and can be remembered. "Each of us in there has our focus, of course. Things we pay more attention to, that we notice more clearly. My focus is Chet. And his focus is you."
Correction
She asked why Dr Sullivan appeared and he answered that it was probably "the Doctor" in him. He couldn't just let someone die of poisoning. Then Lacuna asked what he meant when he said that he was aware of things while in "his host", and if that was why he knew her name. (That's the second time one of Benoit's personalities has mentioned that, the other was Lacuna's granddad.)
He answered that it is like fragments of a dream, bits that filter in and can be remembered. "Each of us in there has our focus, of course. Things we pay more attention to, that we notice more clearly. My focus is Chet. And his focus is you."