Quote Originally Posted by ermitonto
mine is grounded in science instead, and a lot if not the majority of the discussion centers around this difference, because the two worldviews are mutually incompatible.

What if (and I'm a complete atheist BTW) God is really an infinite energy point like in the realm of a source (like in mathematics), from where an infinite amount of energy can be emitted. Remember that mass is just trapped energy. Thus, the existence of everything can be explained by the existence of a source of infinite energy at the point of the "big bang." However, this god has to conform to the laws of physics, so "miracles" are out of the question unless it expends a large amount of energy, which would have many consequences other than the intended miracle.

In regards to original question, since we are all energy, the term spirit could refer to the specific set of harmonic frequencies that our bodies exist at, meaning that we, in our own reference frame, perceive the inner emination of resonance energy which our minds can pick up and perceive as the spirit. I believe in science, but modern science can be religious if you alloow yourself to "believe."