There has been discussion of an atheist can be "spiritual". My answer is yes. The reason is that the spiritual is from within, not without. it is internal, not external.
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.
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.
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.
It's a word that means everything and nothing, and that's the problem with it. Some people like to impress others with talk about how 'spiritual' they are. It's a sort of boast, a way to impress. "I don't know if I'm religious, but I'm spiritual." Right... Sorry, but I don't buy it, and I'm inclined not to let people get away with using it. For example, your statement that spiritual is from within, not from without. I have no earthly idea what that means. Sorry.
As an agnostic I thank you. "Spiritual" has many definitions and I'd dare say it differs for every individual.
We are not machines. There is much we don't understand about our emotions, drives and aspirations...but in my opinion any definition cannot fully describe actually experiencing them.