I once had a friend who was dangerously addicted to cigarettes, and it was killing him. I was living in Denver, Colorado at the time and I had allowed him to live with me. We had many conversations about his addictions, and one method I was able to intuit to him was that every time he smoked a cigarette he would mentally affirm, aloud and in his mind, that he was choosing to smoke the cigarette. Not because he needed to, not because he had to, but because he was choosing to.
My theory was that if you gain control over the choice, then you are no longer addicted, because you take back the choice to do something, then you are automatically granted the power not to do it. (Psychologically, anyways, physical addiction is a different case.)
You see, addiction lies in our basic selves. The part of our being from which the more animalistic tendencies rise. I like to think of communicating things to this part of yourself like communicating with a young child. It doesn't understand higher reasoning, just like a child doesn't fathom that it shouldn't eat candy because of bad things that will happen at some point in the future. So you have to firmly, yet lovingly guide them in the right direction over time.
I don't know if you've already stopped cold turkey or if you're still trying to wean them out of your life, but even you still take them intermittently then I would recommend what I described.
If, however, you have stopped taking them altogether and are struggling not to relapse, I would add that affirmation to your efforts of meditation and thinking. Mentally assure all the levels of your core being that you chose to take opiates. Not because you NEED them, not because you HAD to, but because you CHOSE to. Then mentally affirm that you are now choosing sobriety.
Two more points. (I know this is getting rather lengthy, I apologize, brevity has never been my strong suit)
The first, is to look up the mystical principle of auto-suggestion, specifically before bed. This is the best time to create "self-laws". I recently read a book called "Practical Mysticism" that goes into this, and you can use this tool as a power aid to modify behavior and instill pattens that you wish embrace in your life.
The second, is that there exists the principle that the human mind cannot focus on the opposite of an idea. So if your focus to "Stop taking Opiates" Then you're still bombarding your being with thoughts of Opiates as being a goal. I would highly recommend setting your intention and focus on Sobriety. Clean, healthy, affirming sobriety. Your basic self, as mentioned earlier, responds to more intrinsic incentives, like fun and enjoyment. So imagine yourself in a lifestyle where you have a balance mood all time. A lifestyle where you can begin to hone your ability to tap into the Force. (Sobriety is best suited for psychic development.) Whatever excites you and entices you, include into your imaging of your ideal life, associate in your mind that you can achieve these things with sobriety.
To put it differently, give your basic self something to move towards and be excited about, and it will magnanimously enhance the progress you can make moving away from opiates.
In regards to the physical addiction, that is more immediate and difficult. I don't have experience with withdrawal symptoms from physical dependency so I cannot advise you on that, but I hope my perspective helps.
Lastly, do not be afraid to ask for active meditation and prayer concerning this. We are your community, and we want to see you heal from this. I've no doubt that your family and friends feel the same way. Arrange a time weekly when people pray for your in unison. (i.e. for 30 minutes every Monday at 10pm have all your friends and family and us here pray or meditate that you have the strength and grace to achieve complete sobriety)
Combined intention is a very powerful tool, it lowered crime rates in the city of New York, I know that it can help you conquer this demon.
May the Force be with you friend.
