Excuse my ignorance, but isn’t this numerology, and isn’t that a form of divination, and doesn’t the Catholic Church condemn divination?
St. Ambrose wrote:
“The number seven is good, but we do not explain it after the doctrine of Pythagoras and the other philosophers, but rather according to the manifestation and division of the grace of the Spirit; for the prophet Isaiah has enumerated the principle gifts of the Holy Spirit as seven” (Epistle to Horontianus).