http://www.jimhopper.com/mindfulness/
Many people have learned to block out feelings, or never learned how to be aware of some, which means they often don't recognize an emotion in themselves until it's become extreme. This does not mean that one lacks emotional responses to things that happen, just that one's emotions are mostly operating out of awareness and on "autopilot." This can be particularly true for people who have numbed themselves to their emotions with addictive relationships to alcohol, drugs, food, pornography and other "fixes."
If one doesn't notice or pay attention to one's emotions and they run on autopilot, many opportunities for observing and working with emotional chain reactions are lost. But that's how our minds and emotions tend to work: Based on past conditioning, current situations and stimuli – both external and internal – trigger emotional associations and reactions. Such triggering happens automatically, without our having any say in the matter.
Mindfulness helps people to notice these associations and triggerings as they occur, or at least before a chain of them results in overwhelming emotions or impulsive actions. That is, mindfulness can help you see and make connections between perceptions, thoughts, memories, emotions and impulses – connections that have always been there, but operating outside of your relatively limited awareness – in a way that prevents your mind and body from going out of control without you knowing why. In short, while you have no say over the initial conditioned responses that you have, once you're aware of them and not judging them, you can have a lot of influence over what happens next.
While I don't believe this page is written for dissociative disorders, it does seem to fit.
Then I got to this section...
Important: If you have any of the following problems at times, then practicing mindfulness before you are ready will tend to make them worse or create new problems:
Tendencies to become overwhelmed and "flooded" by painful feelings and memories, due to underdeveloped self-regulation and coping skills. For people with histories of traumatic child abuse, this is common and normal during the "first stage" of recovery, when learning such skills and establishing safety and stability in one's life are the main tasks. (To learn more about the "stages of recovery" from child abuse, see the About Therapy and Recovery section of my Child Abuse page and Judith Herman's book, Trauma and Recovery – links open as new pages.)
Tendencies to "dissociate" – that is, blank out, space out, leave one's body, etc. – in stressful or upsetting situations. These are not uncommon experiences among those with histories of severe child abuse, and can become automatic and habitual. Originally self-protective in otherwise inescapable situations, dissociation can later cause many problems. For beginning meditators with abuse histories, dissociative states are sometimes confused with mindfulness. Learning "grounding techniques" and other emotion-regulation skills will probably be necessary first steps toward cultivating mindfulness.
Tendencies to get "lost in your own world" and withdraw from relating to others, or to not even bother trying to connect with others. In this case, mindfulness practices could possibly be "co-opted" by strong habits of self-absorption and disconnection from others.
Tendencies to hear voices in one's head that sound like those of real other people, or to become convinced of ideas that are extremely unlikely or clearly untrue to other people. (As this can be a delicate topic for people with such experiences, and difficult to address in writing rather than thoughtful and respectful conversation, I will not write anything more.)
So I guess what I'm asking is what does meditation do for someone that is dissociative? It's something I've never really tried but am considering.
Isn't dissociating sort of like meditation? Can it be harmful to a system?