I don't define it as anything anymore. Last I did was atheist. It all just seems like a religious debate to me now and not a spiritual one. You might really enjoy some of the links on aaagnostica Cow. I'm not in AA so it's not an AA thing. There is one article talking about spirituality:
To begin her talk, Dr. Tarman offered a “catchword” definition of spirituality: “Anything that pertains to a definition of self, mission or purpose.” She distinguished it from religion, which is more about dogma or specific belief systems.
The biology of spirituality begins with an understanding of the divided brain.
The Biology of Spirituality | AA Agnostica
Give that brain some time to heal Cow. Spirituality will come in whatever form it is supposed to. However you are supposed to define your self, mission or purpose you will be able to do that.