Large-scale festivals - such as Spring Harvest or New Wine - are not just modern phenomena, but have much in common with the festivals of ancient Israel. They build identity, offer a sense of encounter with God, and enrich the worshipping life of individuals and churches.But festival can equally well enrich the local church without a big investment of time and resources. This study looks at why festival matters and how we might reclaim it as a celebration of God and invitation to others.