Sriram,
But these phenomena are all naturalistic in character. The issue here is that some people claim something they call "supernatural" - ie, outside or above the natural. Leaving aside the definitional problems with that, how would such a person distinguish "supernatural" from "natural but without a naturalistic explanation to hand"?
And that's the point. Everything that exists is natural. It may of course contain phenomena that don't fit into our understanding of the world. That doesn't mean its not natural. As I have said about the quantum effects that may seem bizarre....but are natural.
The 'supernatural idea is a dualistic idea. One world here (natural)...and the other world out there (supernatural). It is born of the biblical idea.
Much water has flown and today we know that the world is a wide spectrum.....from the quantum world to the normal world to the cosmic world ....and perhaps extending further on both sides into a sub sub atomic world and a super cosmic world. So the idea of just two worlds is outdated.
Out of this wide spectrum, we can measure and analyse only a small section.....which we call the natural world. Everything beyond that is also natural but beyond our scope of study.
Its all about labeling and nomenclature. The idea of a supernatural world is a human construct just as the idea of a natural world. The reality is that it is a spectrum out of which whatever we don't understand we have been labeling as supernatural. We don't need to do that any more.