This is exactly why the iceberg of emotion is written, because your intentionally only looking at your emotional responses, not the underpinning emotions themselves. Unlocking your sub-conscious is actually pretty easy, hence what mental imagery does exactly this, though being ready to deal with your trauma is not the answer, more like you simply don't really want too at the moment... you have to really want to deal with it... this is why we have the list of emotions, where you can look at your response, look at the circumstance, then look for emotions to help you identify the real problems.