Druidry was the native spiritual tradition of the peoples who inhabited the islands of Britain and Ireland, spreading through much of Europe. Though many consider it to have been a religion or political force that came to Britain with the influx of culture concurrent with the Iron Age, it is increasingly understood, and acknowledged, to be of an older indigenous if ever-evolving religious tradition sourced within these islands.
As an ancient pagan religion, Druidry is based on the reverential, sacred and honourable relationship between the people and the land. In its personal expression, modern Druidry is the spiritual interaction between an individual and the spirits of nature, including those of landscape and ancestry, together with the continuities of spiritual, literary and cultural heritage.( Taken from the Pagan Federation page)