Abstract/Sommario: The A. is the Director of Al-Liquà Center. In the article: Meaning and conditions of dialogue; Why do I call it an Arab Christian-Muslim dialogue and not a Christian-Muslim dialogue?; Urgent Reasons for dialogue in the Holy Land since 1980; Kinds of dialogue: international dialogue, local dialogue; Principles of dialogue; Dialogue is not religious propaganda; Dialogue is not pretension but plain interaction; Themes of dialogue