This chapter focuses on the companion volumes Mystic Trees and Poems of Adoration to explore the ways Michael Field’s poetry changed following Katharine Bradley and Edith Cooper’s 1907 conversion to Roman Catholicism. This chapter reviews prior scholarship on Field’s devotional poetry, which has often emphasised the continuity between Field’s pre- and post- conversion work. The chapter builds on this scholarship by arguing that Field’s devotional poetry, informed by their newfound faith, explores new ways of thinking about time, suffering, and the purpose of art. Furthermore, this chapter explores the significance of studying Victorian devotional and religious verse, and the ways women and queer people were able to use the genre to engage with and build upon theological concepts, outside the bounds of ecclesiastical authority.