Hans Boersma’s Heavenly Participation: The Weaving of a Sacramental Tapestry is a plea for Christians to honour the presence of God in all things. Boersma begins with a critique of a modern tendency to erect far too firm a wall between nature and God. Many modern Western Christians, he suggests, have un-knowingly allowed this dualism to shape their views of time, nature, the human person, and even Scripture. The cure? A rediscovery of the “sacramental worldview” espoused by Augustine, Irenaeus, and C.S. Lewis alike. From this perspective, “The entire cosmos is meant to serve as a sacrament: a material gift from God in and through which we enter into the joy of his heavenly presence.