The first few words from your link read as follows:<quoted text>
Since atheists don't believe in the supernatural, superstitions, or any out of the "ordinary", they can't define it because they don't believe it exists. It would be beyond their means.
Or something like that.
Yes, you could say it takes a certain religious orientation to define it.
Now, what kind of nonsense are you going to come up with to say you can define you know nothing of? Eh?
"The term spirituality lacks a definitive definition"
Spirituality is not something that only the religious get to define.