Spirituality is indeed the master key of the Indian mind; the sense of the infinitive is native to it.
The only thing Native Americans ever did better than the rest of us is spirituality. Of course, that's everything, isn't it?
If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans.
The intuitive mind is a sacred gift and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift.