I don't follow: you would "make that claim", hence agree with me? Yet then you go on to, apparently, disagree with me.
As far as spirit being substantial and unproven, I'm not sure what your driving at. If you mean substantial as in some physical, scientifically identifiable, material thing, well, no - this has not been proven. I'm not interested in looking for spirit through science; they are entirely separate fields of study.
And yes, if you break something you might refer to an "inner gremlin" as a figurative expression of an aspect of your nature. There's nothing wrong with that. Spirit works in much the same way - it is a figurative representation of your essential nature. This has nothing to do with western science; this is inner science, spirituality.
And I'm really lost when you say that spirituality is a "conglomeration of abilities rather than a substantial ability in itself". Depends on how we look at it - a spiritual practice often involves the cultivation of unique abilities, perhaps different types of meditation. But typically these all are geared to cultivate some particular aim, like enlightenment.
From one recovered addict to another, I would be interested in your take on the rest of my post, too. I've been in the NA meetings, and while I do not like that organization terribly much, the God they spoke of was personal, a strength of character found within one's self. They, as an addict, are powerless against the addiction, but with the help of something greater than their addicted self, they are able to examine their mistakes and make the necessary moral changes. It's not, "oh please, Lord, majically save me!" it's "Oh, please Lord, help me find the strength to save myself."