The definition of spiritual is something related to or concerned with religion, the spirit or the soul.(adjective)
When you are more concerned with God or with the state of your soul than with material things, this is an example of a situation where you would be described as a spiritual person.
See spiritual in Webster's New World College Dictionary
Origin: ME spirituel < OFr < LL(Ec) spiritualis < L, of breathing or air
See spiritual in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old French spirituel
Origin: , from Latin spīrituālis, of breathing, spiritual
Origin: , from spīritus, breath; see Spirit.
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