Well DJS, I don't agree with you, or as at least not 100%, but I would never push the dislike button because I don't agree with a poster.
I always wondered why some religious people reported some communication with God, I never felt that, so I wondered why they felt that way. Now that I meditate I think they are just feeling an altered state of consciousness brought on by meditation, only they weren't trying to meditate, they were praying. Of course they felt what happened was from God, since they were praying at the time. But people in every religion feel this, so it proves nothing about any particular religion, or that God exists.
I read an interesting article recently about an experiment. They had people live with out artificial light for several weeks. When it got dark they went to sleep or sat in the dark. Many people in the study started waking up after three or four hours. They then experienced an altered state, they felt very peaceful and aware and alive. Then they went back to sleep. Maybe this is what our ancestors experienced before artificial light became the norm and meditation and/or religion is just an attempt to get back what was lost. We know sleep is essential for good health, perhaps this altered state is just as essential.
I don't know if spirituality can exist for those that don't believe in God, but I am interested in the concept and plan to do further study. Of course it's just a feeling, and of course feelings can mislead you, but I also think it sometimes important to pay attention to them.