The dissociatives are Death, sensory shutdown, focus on the archetypes, awareness of the internal universe. Serotonergics are the "Ana" side of Chaos, dissociatives the "Kata" side of Chaos (Chaos being the essential driving energy behind reality, if you will). More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.