Recent years have seen a renewed interest in the ontology and function of the Eucharist, as the source and summit of the Church's common life. This book explores the relationship between the Church and the Eucharist, specifically the notion that the Eucharist ""generates"" the Church, both through its own realisation and in relation to other sources of the ChurchIs sacramentality. It considers the ecumenical and missiological implications arising from this understanding, and further analyses resultant liturgical implications, specifically focussing on the Church of EnglandIs Common Worship rites.