I think that the very fact that there exists consciousness in the universe is ample evidence that something beyond what we can see/hear/taste/feel/smell exists. Life by itself is not that amazing of a thing, but consciousness, the very fact that we know that we exist, to me indicates that there has to be a greater consciousness out there. I don't believe that thought can come merely from electrical discharges in the brain.
However, what we are talking about is something that not only is beyond our comprehension, it is incomprehensible. Any attempt to define or explain what god is, what god wants (great Waters song), or the essence of "god's will" is by its very nature false. As limited beings we cannot begin to comprehend anything at all about god. And any book, preacher (sorry Maani...don't take offense), or spiritualist that claims otherwise is offering false testimony.