jan,
how do you explain an intelligence without substance?
how can you rationalize a creator in regards to "where life came from"?
Intelligence can be deduced without substance by a specific signature in it's effects. The obvious one would be Mount Rushmore versus Ben Nevis.
I'm not sure if i comprehen the second question properly, but I'll give it a shot.
It all depends on where you think life came from. It would be odd to postulate that life was created without a reason. Our experience, and understanding of life's coming into being is that it springs from other life who in turn spring from life. So life comes from life, we have no other experience or model to go off. I see nothing wrong with the assumption that a creator that creates life, has the capacity of a greater life than it's creation.
jan.