Quaker meeting
I am a Muslim who sometimes attends my local Quaker meeting. In England, Quaker meetings offer unstructured worship where one sits in silence until someone feels moved to speak. In my local meeting I can generally enjoy 30 mins of silent meditation or dhikr until someone speaks. In the silence, Quakers wait on God “as if none were present but the Lord” and the metaphors they commonly use to describe God are spirit and light, which map to the Sufi concepts of ruh and noor.