Spirituality is not based on christian criteria. It's a general word in how people relate to the world whether it be by morals, religion, or their faith or however they call it.
One of many reasons I'm not christian is I do not feel right having this type of viewset: your faith is defined by my criteria. It would be more appropriate to ask what I base my spirituality or faith on.
Lends for a better conversation. It's not one-sided.
The whole Christian bible is base on Spirituality. This is why the bible speaks of the Spiritual living and the Spiritual dead.
Alot of people will say, the bible says nothing about Atheists, All but it does have alot to say about Atheists, the bible may not come right out and say Atheists.
The bible uses the term Spiritual dead, in reference to the Atheists and the like.
Because being Spiritual dead, means they have no spiritual awareness of God, So in turn they are Spiritually dead to God.
But also Spiritual dead can also be in reference to Christians also.
If Christians has no Spiritual awareness of the 3 heavens and earth ages, Then they are Spiritually dead.
Let's take this in one step more, In the bible the book of John 5:25--"Verily, verily, I say unto you, The hour is coming, and now is, When the dead shall hear the voice of the Son of God: and they that hear shall live"
Note Christ Jesus said, The hour is coming, and now is, This being those that are Spiritually dead that if they now hear his voice and turn away from their Spiritual deadness shall live.
Note Christ Jesus also said, " The dead " this being in reference to the Spiritual dead.of having no spiritual awareness of Christ Jesus or God.
But if at some time during their life and they hear the voice of the Son of God and turn away from their Spiritual deadness, they shall live.
Note that in 1st Thessalonians 4:16, And the dead in Christ shall rise first"
The dead here are the Spiritually dead, that shall rise first to be taken to judgement. Then we which are live ( Spiritually alive ) that is, shall be with Christ for a Thousand years.