I always think that spirituality is the feeling of overwhelming feeling that comes from being faced by the enormity or the beauty of the universe.
Be that an amazing sunset, or the first time a tiny new born human takes in its surroundings. That is a sense of awe at the greater world around us. I remember being reduced to tears when I saw my niece watch a flower moving in the breeze for the first time. If that is spiritual, as in it raises your conscious above the mundane and the everyday, then yes, I feel spiritual.

I feel spiritual when Im moved to tears by a poem or a piece of music. I feel spiritual when I gaze up at the stars and just contemplate my tiny significance in the vastness of the universes out there.I feel spiritual when I'm lost in the lushness and sounds of the rain forest and I feel so grateful, so privileged to be alive and appreciative of the beauty around me.

Spiritual refers to the mind... To be spiritual is to be mindful... I'm spiritual concerning nature

The problem is that there is no real common definition of it used, so it's really a worthless term in the religious sense.

Ha. There is no book or rules, that is one of the wonderful parts about atheism. If someone thinks they are a spiritual agnostic, I have no problem. I might be curious to know about how the person decided on the label.

I think the term has the connotation that a person is interested in exploring subjective human experience, and that those experiences are valuable to us as humans. It provides a corrective to the "Spock" (all logic and no emotion) atheism. As such, I think it is a term that needs to be kept. Not all of us want to be Spock. Some of us want to be Bones.