yeah, whut yella said atm.
for me, this is an area where psychedelics have been most useful to me. both E and shrooms, but mainly shrooms. taking shrooms and thinking about the situations and behaviour I've regretted has been so cathartic, mainly because shrooms instantly brought down the subconscious defense mechanisms I was using to avoid thinking about whatever situation or relationship I didn't want to think about. while at the same time not leaving me feel totally exposed or negative (which I find LSD does).
shrooms give you the empathy flood you need just at the right time when thinking about regretful events, so you can both see the situation honestly (due to neutralising of your defense mechanisms), and then also be totally free to feel empathy for the other person and what they went through,
... or just see the reality of a shitty choice you made and why you made it, no longer needing to mask or cover for the reasons you didn't want to acknowledge
it can be devastating to do at the time, but the empathy flood of shrooms also neutralises that mortified feeling you get with those kinds of realisations, and it kinda just makes you insanely grateful for knowing it ... makes you relieved, unburdened and also ultimately insanely positive because of the combination of those factors means you know that you'll no longer ever ever do whatever it was again.
i occasionally take shrooms just to push a situation around in my head, one I know that's been bothering me (because of sleep nightmares or whatever) .. and almost try to force it out
anyone remember seeing the Bruce Parry episode for what I think was his tribe series? the one he took
Ibogaine in? awesome episode. when he came round he recounted various scenarios about his past that he'd suddenly been able to clearly see the devastation and unpleasantness he'd inflicted on some of his ex GF's, and expressed that as soon as he got back home he was going to call them and let them know he knew.
I can see why it's seen as being useful to get some people off their addictions, as it facilitates the ability to clearly see how much their behaviour is negatively affecting those close to them, those things that are impossible to observe when you're knee deep in shit and understandably self-absorbed
The main reason the 'no regrets' thing is highly questionable to me, is because the person saying that has basically skipped the step where they learn to empathise with the other people who were affected by the regretable behaviour. it's an auto 'get out of jail free' card which means you instantly just gloss and paper over your personal pain and guilt, at the expense of not making mental amends with yourself first ... [edit] and this also means that they are more likely to repeat past behaviour