The spirituality consists in living the spiritual gifts, the blessed life. The gifts are magnificences and excellences of the divine, they are the maximum virtues of man. The concept of spirit appears for the first time in the Bible, Book of Genesis about the creation; and more precisely in the Gospels of Jesus. In the Gospels there is no mention of the soul, it is only the Apostle Paul in his letter that mentions the triple division of man in: body, soul and spirit. Spirituality is summarized in a teaching of Christ: "Be perfect as your heavenly Father is perfect," Matthew 5:48.
The greek philosophy, with Aristotle and Plato, study the moral, or to say the "soul." The studies of Greek philosophy focus on the study of an intermediate state between good and evil. The virtues of the soul are not gifts, for example justice is a central virtue of the soul, but justice is not a perfection, a gift, because equity completes justice. The gifts are complete, that is, they can not be superated or improved, for example: mercy, perseverance, peace, concord are perfect gifts or virtues.
The understanding of spirituality requires the progressive thinking, the development of the thought from the simple to the complex. Only when we understand the divine substance, the spirit, is when we understand the phenomenon of progressivity, the gifts are progressive, thence the affirmation in the epistle to the Ephesians:
"Be renewed in the spirit of your mind", Ephesians 4:23
Receiving a new spirit is the result of the growth, of the improvement, of man. The nature of the egg is the chicken, the nature of the worm is the butterfly, the nature of man is conformity to God. This conformity requires a new birth. All the parables of Jesus about the spirit refer to progressivity, improvement, growth.
Spirituality is edifying, expansive, progressive, evolutionary, benevolent, just; reject the error and the falsehood. God grants immortality, eternal life, wisdom to those who seek excellence within and outside of themselves (Letter to Romans 2: 7, Book of Wisdom 8:17), to those who seek the correct and the best. Those who do so receive the new birth, the birth of the spirit: "what is born of the flesh is flesh and what is born of the spirit is spirit", John 3: 6 to conclude: "Nobody can see the Kingdom of God unless they are born again ", John 3: 3