I was raised in a pretty strict Southern Baptist church. I was a kid, didn't know better, did as I was told. Took a great deal of comfort in the hymns, the service, the fellowship. As I grew older and realized that for me, what organized religion stood for (and not ALL, just in my experience) was in stark contrast to how I felt about a number of things that would be "sinful". I married a Catholic, have a child just this side of nunnery, one that debunked Catholicism as a "myth" and changed her religion, and the list goes on and on. I admit I have a religious buffet. I like a lot of a number of religions. I can't give up Jesus, though, so I pick and choose parts of a whole that I find humbling, comforting, and makes sense to me, and is inclusive to the people I love, and the causes I support.
With all that being said, it is not about me. It is about the patient. I have helped stage Wiccan rituals, Orthodx Jewish end of life rituals, and music with old school hymns.....because it was for the patient. I don't particuarly care if you worship Ralph, the Head of Lettuce (and I would run to the store and get you a Ralph, if you needed that) my job as a nurse is to make sure that a PATIENT'S spiritual needs are met, not my own.
Being an atheist in your life is your business. Knowing what spiritual needs (if any) your patient needs is your business. So a nurse incorporates a PATIENT'S mind/body/spirit to provide care. This is why there are clergy of various faiths in your facility. In your Town. Know how to contact them. Then your job meeting your patient's spiritual needs will be met, without your own beliefs having to get into the mix.