Perhaps we could say that one is not Christian unless he/she enters into glassenheit.
It is often translated as submission. I don't believe the simple word "submission" does justice to the more robust definition below. Submission paints a picture of a spinelessness. A beat and whimpering puppy, perhaps. The connotations simply don't work. Submission suggests cowardice and weakness. Glassenheit is a silent strength that thrusts its hand into the circle of believers, receiving in return the support of many hands.