The Order of Bards, Ovates and Druids defines Druidry on their web site as follows:

Druidry [is] a spiritual way and practice that speaks to three of our greatest yearnings: to be fully creative in our lives, to commune deeply with the world of Nature, and to gain access to a source of profound wisdom.

Each of these yearnings comes from a different aspect of ourselves that we can personify as the Poet, the Shaman and the Sage.

In Druidry,