The unpinning and disposal is recognition that the incremental process of getting better at dealing with feelings has now come to a final stop. The whole thing is finished and conquered. The preservation of the brooch is a memento of conquering troubles. There is obviously no way of erasing the past and the Burnham Rose is not trying to do that. The brooch is a reminder that the person was able to lay the ghosts of the past to rest, serving the same purpose as a soldiers medal.
Fear is a very important subject.
The recollection of fear in the past The worry about the future. It is very important that these are distinguished, because the Burnham Rose can deal with the first but not the second. It is quite natural for some frightening events to leave a dread of repetition but this can only be dealt with by support and confidence building. This rosette of ribbons method was thought up in response. If you have doubts don't use it.