A nun, a qualified musicologist, anthropologist and singer, she is able to harmonize art with science, and creativity with authenticity with an amazing skill.
Her second vocation has opened to her the doors of repertoires from the shadows of the past, from the very first centuries of Christianity and the brotherhood between all Maronite, Syrian Catholic, Orthodox Syrian, Byzantine and Melkite songs; she has become the very "Fervor of Traditional Christian Song".
In a word, she offers her voice, her entire self and her art in the service of the Divine Word and her mission as a nun. She often says, "When you sing, you pray twice", repeating what Saint Basil had said, in her own words.
At the crossroads of religions, her records have met with international success and have brought her several invitations to sing from all over the world, turning her into the Messenger of Peace, the Light of Holy Music, and the Mysterious Voice of the East. Since then, she has been appearing regularly in concerts along with her ensemble - the Ensemble for Peace, a name that clearly illustrates her desire for tolerance, universality and ecumenism.
Perhaps the reason that Sister Marie Keyrouz has, today, become the Grande Dame of Christian singing, the Golden Voice of the East, the Voice of Ecstasy, the Mystical Vibration or the Gift of the Influence, is that, in her view, singing offers the only opportunity to express a truth that would otherwise be left unheard.