... they knew.2 " ;Personal mastery& quot; is the phrase my colleagues and I use for the discipline of personal growth and learning. People with high levels of personal mastery are continually ... experiences—as we develop our personal mastery. But if mastery will not develop so long as we hold unempowering beliefs, and the beliefs will change only as we experience our mastery, how many we ... the greatest importance to the discipline of personal mastery. 16 This is why, for instance, people committed to continually devel-oping personal mastery practice some form of "meditation."...