TO COOPERATE WITH THE PERSONAL PRELATURE OF THE CATHOLIC CHURCH OPUS DEI BY SPONSORING RELIGIOUS AND DOCTRINAL CONFERENCES, SEMINARS AND RETREATS, AND BY PROVIDING FINANCIAL HELP. IN FURTHERANCE OF THESE PURPOSES, TO HAVE THE POWER TO RENT, BUY OR SELL PROPERTY, AND TO OPERATE A RESIDENCE FOR THE PERMANENT STAFF OF THE CENTER.