This is an interesting question - and since I just happen to be finding some peace at this very moment, I'll be happy to expostulate on my own kind of self pacification.
I can honestly say that years ago I was pretty lazy and didn't have much of a sense of direction in life. Note, that I grew up in the country (Ireland if you must know) and that experience in itself was quite the opposite of what you might expect. It was mind numbing and I resented it-perhaps unfairly, but at that age-teenage the last thing I wanted was to be at peace, with myself or anything else! I was discovering Reggae and Dub at this time (and other music) and this was always a means to focus myself, but not in any deep way.
When eventually I moved to Dublin I loved it despite the fact that at the time it was a grim and economically challenged place. There was at least a cultural life - film, drama, music etc. When I started working was a really challenging time. Work and all of the agro that goes with it is something no young person is ever prepared for. A friend of mine at the time was an artist (painter) - not necessarily at peace with himself then or maybe even now but from him I learned the value of really applying yourself to something you feel passionate about. I bought a 4 track tape machine and started learning to play and record and I've been doing it for years ever since then - I've spent way more money on this passion than I've earned but it is the act of composing, performing, recording, mixing that expels demons, soothes the soul and clears the mind. Without music, there is no peace for me.
But...of course there is a but, there are always challenges and of course I've experienced miserable times just as anyone else does, where music is not quite enough to rectify things - maybe the motivation isn't there or whatever - but it always there as a bedrock to come back to. Things move in cycles. Sometimes I'm out of time with the riddim of life or whatever!
I've never been one for organized anything - I think you must find your own individual way to find peace and people need to respect each other's ways of achieving that peace. Unfortunately there are just too many fad self help codology philosophies and religions out there - most of which want your money and give you nothing in return. It is refreshing to read that people on this forum have very simple and unpretentious ways of dealing with the stresses in their lives.
This is long I know. One last point. I live in NYC these past several years and I really like it still. Never have any desire to go back to my country roots. To be at peace need not mean being at rest (as in a body at rest) - active and productive is in itself a means of achieving it. Helping others - not something I do much or enough of - but really worth doing just for that good feeling.
Hope this wasn't too long and waffly...
Every once in a while it is also a pleasantly regenerative and peace inducing inactivity for me to enjoy. It's called way more than 6 hours sleep per night. Give me a good 10-12 hour stretch every once in a while and I'm a happy Dub fiend...
http://www.myspace.com/eatingbetty