"Only one in a thousand aspirants is at the stage where he should begin to work with the energy in the centres, and perhaps even this estimate is too optimistic. Better far that the aspirant serves, and loves, and works, and disciplines himself, leaving his centres to develop and unfold more slowly, and therefore, more safely. Unfold they inevitably will, and the slower and safer method is (in the vast majority of cases), the more rapid. Premature unfoldment involves much loss of time, and carries with it often the seeds of prolonged trouble. (p. 590)."