This is such a powerful idea, John.  It is easy to become overwhelmed by the many things pulling at us from all directions.  It's not that I don't want to say yes to all the worthy people and causes in life, it's that I do!  That's the struggle!  It's only in the past few years that I have started becoming better at making choices and being OK with saying 'No.." It's an important skill that needs development and practice.  Thank you for the reminder!