enki, may I point out a couple of errors. I can quite easily acknowledge the natural world - I have never done anything but. However, my experience of life as a whole is that the 'natural world' that can be verified by sceintific testing and experiment is not the whole of the natural world. Yes, in a wa, one has to experience before one appreciates it - in the same way that, for instance, one has to experience Niagara Falls (or Victoria Falls) before one can fully appreciate their majesty. They are more than just a physical drop in a river bed and the resultant waterfall.
Secondly, I don't talk about spontaneous healing; I have only used the phrase in my posts because it is the explanation - that has no scientific grounding behind it - that some here choose to use instead of the term 'miraculous healing'. In other words, they prefer to use one 'unscientific' term, instead of another. As regards your invocation of randomness, there is a degree of randomness with spontaneous healing, there seems to be no rhyme or reason for it from a scientific point of view. At least with miraculous healing, which tends to follows prayer, there is a some form of reason.
You may, except I'm not sure where the 'errors' lie. Firstly I have already suggested that you acknowledge the natural world, so no error there. Secondly, I have already accepted that your experiences lead you to think that there is more than the natural world involved, when I said "I'm quite sure that many people see plenty of things which they think point towards a spiritual world". That, of course, includes you, so no error there. Thirdly, I am not asking you for a scientific methodology, just a verifiable methodology of any type you care to use which will substantiate this spiritual world. So, no error there. If you have subjective experiences such as experiencing the majesty of the Niagara Falls how does this even come close to verifying that a spiritual world actually exists? Surely you are talking about intense personal experiences, which as important as they are to you(or mine to me, for that matter), cannot be used as evidence for or against a spiritual dimension, not even the divine or any sort of consciousness outside of nature. If you are going to make assertions that there is a definitely a spiritual dimension, you need much more than this.
On the subject of spontaneous healing or miraculous healing or whatever you care to call it, you cannot easily discount natural processes as a possibility, and, even if you did, as you agree, there does seem to be no 'rhyme or reason', and I would suggest from any point of view. That is one reason why, if we are to find reasons behind such phenomena, our best bet is to look at the natural world. At least we know that that world exists.
As far as the last sentence goes, follow your own logic. If miraculous healing follows no praying at all, then is the idea of not praying to be touted as the reason for this? Or, if praying is followed by no evidence of miraculous healing(which, I would suggest, is the case for the vast majority of cases), does this mean that praying has a deleterious effect? I see no evidence for either, of course, just as I see no evidence that the actual act of praying can help cause your miraculous healing. The fact that in very few instances so called miraculous healing has followed praying can be explained by selective correlation, not causation, just as instances when no miraculous healing takes place after praying is again selective correlation, not causation.