"...you cannot grow in the great art form, the integration of action and contemplation, without 1) a strong tolerance for ambiguity; 2) an ability to allow, forgive, and contain a certain degree of anxiety; and 3) a willingness to not know and not even need to know. This is how you allow and encounter mystery. All else is mere religion."

From Fr. Richard Rohr, A Lever And a Place to Stand:

The Contemplative Stance, the Active Prayer, p. x (foreword)