The father of spiritual ecumenism, Paul Couturier, spoke in this regard of an "invisible cloister" which unites within its walls those souls inflamed with love for Christ and his Church. I am convinced that if more and more people unite themselves interiorly to the Lord's prayer "that all may be one" (Jn 17: 21), then this prayer, made in the Name of Jesus, will not go unheard (cf. Jn 14: 13; 15: 7, 16, etc.).