The great lesson which one learns, which helps one most in keeping that tranquillity in life which helps insight, is to be able to become like the ebb and flow. When the first is needed then to become the ebb, when the next thing is needed then to make oneself in that way. When it is necessary to express then to express, when it is necessary to respond, then to respond, at will. In this manner one will always manage to preserve tranquility in life.