The Oxford dictionary says atheism is the belief there are no deities.Why do we have to do that? Atheism is the lack of belief in gods. That is it. Nothing more is required. Most atheists have philosophical beliefs, but they are not necessary.View: https://www.youtube.com/watch?v=_BFIRgn9OLI
It's rare that I run across a committed message board atheist who isn't a scientific materialist.
Once one starts talking about a transcendent reality, spirituality, and a reality beyond atomic matter and energy, they are really starting to veer off into quasi-religious traditions of transcendentalism, natural religion, spiritual beliefs.