I would like to quote Venerable Fulton J. Sheen twice from one of his talks.
First he notes this: There is no other subject on which the average mind is so much confused as the subject of tolerance and intolerance. Tolerance is always supposed to be desirable because it is taken to be synonymous with broadmindedness. Intolerance is always supposed to be undesirable, because it is taken to be synonymous with narrow-mindedness. This is not true, for tolerance and intolerance apply to two totally different things. Tolerance applies only to persons, but never to principles. Intolerance applies only to principles, but never to persons. We must be tolerant to persons because they are human; we must be intolerant about principles because they are divine. We must be tolerant to the erring, because ignorance may have led them astray; but we must be intolerant to the error, because Truth is not our making, but God's. And hence the Church in her history, due reparation made, has always welcomed the heretic back into the treasury of her souls, but never his heresy into the treasury of her wisdom.
and then, this....
Now this is precisely the attitude of the Church on the subject of the world conferences on religion. She holds that just as the truth is one in geography, in chemistry, and mathematics, so too there is one truth in religion, and if we are intolerant about the truth that two times two equals four, then we should also be intolerant about those principles on which is hinged the only really important thing in the world, namely, the salvation of our immortal soul. If the assumption is that there is no Divinity, no oneness about truth, but only opinion, probability, and compromise, then the Church must refrain from participation. Any conference on religion, therefore, which starts with the assumption that there is no such thing as truth, and that contrary and contradictory sects may be united in a federation of broad¬mindedness, must never expect the Church to join or cooperate.
As we grew from childhood to adolescence, the one thing that probably did most to wreck our faith in Santa Claus-I know it did mine -was to find a Santa Claus in every department-store window. If there were only one Santa Claus, and he was at the North Pole, how could there be one in every shop window and at every street corner? That same mentality which led us to seek truth in unity should lead us in religious matters to identically the same conclusion.
The world may charge the Church with intolerance, and the world is right. The Church is intolerant-intolerant about Truth, intolerant about principles, intolerant about Divinity, just as Our Blessed Lord was intolerant about His Divinity. The other religions may change their principles, and they do change them, because their principles are man-made. The Church cannot change, because her principles are God-made. Religion is not a sure of beliefs that we would like, but the sum of beliefs God has given. The world may disagree with the Church, but the world knows very definitely with what it is disagreeing. In the future as in the past, the Church will be intolerant about the sanctity of marriage, for what God has joined together no man shall put asunder; she will be intolerant about her creed, and be ready to die for it, for she fears not those who kill the body, but rather those who have the power to cast body and soul into hell. She will be intolerant about her infallibility, for "Lo," says Christ, "I am with you all the days even unto the end of the world." And while she is intolerant even to blood, in adhering to the truths given her by her Divine Founder, she will be tolerant to those who say she is intolerant, for the same Divine Founder has taught her to say: "Father, forgive them, they know not what they do."
My friend is a wonderful, loving person, but she cannot understand or accept a religion which claims to have the Fullness of Truth. I can only agree with her great spiritual quest to find the Truth and listen to her profound understanding of human nature and the need for the purification of the soul.
But, in the end, faith is a gift. So, pray for her. We Catholics take so much for granted. Those who have grown up with no philosophical framework or metaphysical perspective may be searching and may have may opportunities for grace. But, a time comes for decision.
In the end, the dividing line is Christ Himself. Either one accepts Him as God and Man and Saviour, or one does not. One then must be open to accepting His Church as the place which He established on earth to help us with our salvation.
Pray for a miracle, please.