Voluntary simplicity involves both inner and outer condition. It means singleness of purpose, sincerity and honesty within, as well as avoidance of exterior clutter, of many possessions irrelevant to the purpose of life. It means an ordering and guiding of our energy and our desires, a partial restraint in some directions in order to secure greater abundance of life in other directions. It involves a deliberate organization of life for a purpose.
If my prayer life is strong and deeply rooted, then I will be better able to carry an equally heavy load of work, to bear the weight of our sisters' and brothers' pain and suffering, because it will not be me carrying the load, but God.