Spirituality is a religion that describes the existence of believers outside the secular life. As far as Christianity is concerned, it means that a person who believes in Jesus Christ no longer belongs to the world, but to the Holy Spirit. Christianity believes that spirituality comes from the work of the Holy Spirit, which means that people get the Holy Spirit of God and get a new life.
"Spiritual" means to distinguish us from what we do and see whether what we do conforms to the Bible or is spontaneous. This is a Christian noun. The appearance of the word "spiritual" is recorded in the Bible, which is in sharp contrast with "body" and "blood gas".