There is also the dream that a 13 year old Kovacs has (see Dr, Long's psych report) that upset him 'physically'. A teenage wet dream about his mother? *shudders*
Yeah, the monster image of his mother in that dream has a moth or butterfly shape to it, and we know symmetry is an important motif in the book.
The 'butterfly' image also shows up on Rors' mask minutes before he screams at Manhattan to kill him. I wonder what that means?
Well it might be more accurate to call it the reverse of a butterfly, if I can backpedal over what I said. It's some kind of dissolution that to Rorschach is deadly. It's a synthesis on many levels; of warring nations into peace, and Dan and Laurie's shadows in Veidt's palace before they get it on, and it represents the end of the conflict which defines Rorschach's life. When Jon leaves that scene to confront Veidt he walks past some aquariums and butterfly cases that suggest that something has been captured or contained. It's pretty sad to see that symmetry of Rorschach's face condense into a black spot in the cold of the Antarctic snow.
Here's a quote from RLS in the 'Blood from the Shoulder of Pallas' thread that may explain the synthesis, and Rorschach's role as a being of Reason.
Shelley distinguishes between Imagination and Reason, characterizing the first as "to poiein" - what he translates as "the principle of synthesis;" the root of the word "poet" - and the second as "to logizein" - which he translates as "the principle of analysis." "Reason," he writes, "is the enumeration of quantities already known; Imagination is the perception of the value of those quantities, both separately and as a whole. Reason respects the differences, and Imagination the similitudes of things. Reason is to Imagination as the instrument to the agent, as the body to the spirt, as the shadow to the substance." All of which makes Imagination way better than Reason, according to Percy.