As your prayer becomes deeper
As your prayer and meditation become deeper, they will defend you
from the perpetual assaults of the outer world. You will hear the
busy hum of that world as a distant exterior melody, and know
yourself to be in some way withdrawn from it. You have set a ring
of silence between you and it; and behold! within the silence you
are free.
~ from PRACTICAL MYSTICISM by Evelyn Underhill