Sheer Grace tries to show not just the "link between" but the indissolubility of theology, liturgy, and spirituality; and it does so by grounding it in a radical tradition of liturgy as transformation that has its roots in the scriptures and the lived liturgical experience of our biblical and ecclesial ancestors.
At the same time it looks to the present experience of Christians who feel a deep and largely unmet need for that same kind of transforming experience that liturgy can be; and it looks to the future with hope as a gift of "sheer grace," as something only God can and does give, and not as something we can manufacture by our own efforts at renewal or restoration.