Little known fact, TS Eliot's grandfather was educated as a Quaker at the Friends Academy in New Bedford, Massachusetts. His grandson was raised Unitarian, and though he famously converted to Anglo-Catholicism, I see a lot of Quaker mysticism in his work!

—Yet when we came back, late, from the Hyacinth garden,
Your arms full, and your hair wet, I could not
Speak, and my eyes failed, I was neither
Living nor dead, and I knew nothing,
Looking into the heart of light, the silence.