In the spiritual Iife, the word discipline means 'the effort to create some space in which God can act.' Discipline means to prevent everything in your life from being filled up. Discipline means that somewhere you're not occupied, and certainly not preoccupied. In the spiritual life, discipline means to create that space in which something can happen that you hadn't planned on or counted on.

source: Henri Nouwen, "Moving From Solitude to Community in Ministry", Leadership Journal Spring 1995 p 81 tags: Discipline, Spiritual Formation, Balance