There are different levels of intercultural and interreligious dialogue and exchange. Each of them comports its own chances and difficulties. Yet, the spiritual dimension of such a dialogue may not be overlooked. For christians to enter in such a dialogue, they should first be aware of the meaning of divine self-revelation in their Scriptures. A direct dogmatic dialogue with another religion is doomed to fail. However, the article explains how, for a Christian, the experience of praying is one of the best anchor-points to enter into religious dialogue with persons of other religions.