Heaven's music is simply too much for mortals. Like the pitch that shatters glass, human beings simply cannot handle the infinitely transcendent melody of the Song that has been sung throughout eternity among the Father, the Son, and the Holy Spirit. Heaven's song needs to be transposed into a key that we mortals can actually hear and respond to. The divine Song needs to be translated into a poetic language that human beings can understand and embrace. Thanks be to God, it has been, and in a "way worthy of the greatest works of human genius," as Pope John Paul II has put it. In fact, the Bible claims it as the greatest song ever written, the song of all songs - the boldly erotic Song of Songs...As saints throughout history attest, this erotic song provides the "mystical key" that opens the "holy door" to deep union and intimacy with God. For, as Scripture teaches, the one-flesh union is a "great mystery" that refers to Christ and his union with the Church (Eph 5:31-32). This doesn't mean we all need an earthly spouse in order to enter into mystical union with God. But it does mean that, for all of us, a pathway to a deep intimacy with God opens up as we come to understand "sexual love as it was meant to be."
- Christopher West in his new book, Heaven's Song: Sexual Love as it was Meant to Be