Use Guidance & Common Sense When Expressing Emotions

When is physical discharge of a very strong emotion (e.g., anger or grief) better than continuing to sense it as an observer while refraining from discharging it?

There is no general rule here. There is a need for guidance, from teacher or from one’s own guidance. But common sense is important as a guide. In other words, we express our emotions when they are appropriate to the situations and proportional to the stimuli.  However, to know what is appropriate requires a great deal of understanding of ourselves and awareness of our situations and environments. Before we can do that we do our best, employing our common sense, our intelligence and the guidance of our teachers.