I agree, and you've succinctly stated your point.

Yes. Spirituality is a kind of experience, not a cosmology.

I don't believe anything without sufficient evidence to support the claim. That being said, atheism is the rejection of a claim that a God or gods exist. You can be an atheist and spiritual, as long as you don't believe in any deity, you're still an atheist.

Another example of humans making shit up to occupy their time and try to find meanness in a universe without meaning, purpose, reason, or goals. It makes me wonder why one would lack a particular belief (presumably because of the lack of evidence to a claim) yet adhere to some other belief with the same lack of of evidence. Personal anecdotal testimony is not valid evidence.

"Spiritual"...B.S. by another name. My cat thinks he is spiritual.

I agree fully, I am deeply spiritual and an atheist. I believe in the energy of the mind and the ability to alter our own reality. I believe in the energy of which I am made and that energy is 14 billion years old. My existence here in this conscious mind is just that , mind, what is the mind and if we think it is nothing ,ergo it is, The mind is what we think it is, and that is why I want to extend the boundaries of my mind.

No such thing as a spirit or soul s can't be spiritual

I think not all atheists are equal.
I think many people have decided they do not believe in the "God" for whatever ever reason, and they may not believe in other gods.
Others are wary of anything for which there is not sound evidence, sorry gods but you don't pass muster, neither do you reiki and homeopathy and ghosts and little green men.

Define spiritual.

Spirituality involves connectivity. It has nothing to do with believing in a Creator.

every thought you have is internal

Although I’d imagine after becoming disillusioned from religion, one would also realize there is no soul, spirit, sacred energy, ghosts, and the like. It’s true the term simply means without religion.