how do you account for "spiritual" experiences?
I don't know exactly what you mean by the question. I'll assume your asking what I believe happens when someone has an experience such as intuition, foresight, or something of that sort.
I believe those sort of things are attributed to the power of thought or electricity. Everything in the universe seeks unity(meditation/magnetism) and division (thought/electricity). I believe that when things come together in such a way it could be considered providence or euphoric that this may be attributed to the fact of a realization of wholeness. I believe this is why inspiration happens. The universe comes together in unity and finds balance, such as what happened before the big bang. Then division comes from the unity like with the big bang, and as you become divided you sort of lose the wholeness and develop a separateness and a sense of self or ego. Then when you find the wholeness you "lose your self."
I guess to sum it up. I believe that in that natural world you cycle between objective unity without awareness because you have nothing outside to compare with so this may be misinterpreted as nothingness. Then separateness with identity because of the ability to compare yourself with something else. Technically you can't identify something unless it is relative to something else, that is why when you have moments of ecstatic completeness where you sort of lose identity, and at others you have a strong sense of identity.
I hope I was clear with my explanations.