I'm agnostic as well, but I get "spiritual" satisfaction through laying out in nature and just listening to the wind blow through the trees, observing the natural sounds and smells around me, and using all of my senses to feel the magic of the world. To me, spirituality=appreciation for the beauty of the world and its inhabitants. Being agnostic, to me, simply means not drawing any conclusions about how it all got here. I just observe and enjoy. I also listen to intense global/world music, some of which I can literally feel, pulsating throughout my body. Doing so reminds me of how connected we all are to each other, and the beauty in that brings me to a higher place.