Well, during those three nights in mystical side it does not much matter is there a sliver of shadow before or after the true full moon. As before the true full moon the mystic power (or invoked emotions like lust) start rapidly climb, reach eclipse at true full moon night and then diminish little in third and then start descend truly down.<br/><br/>I base this on that the three nights per month both me and mom have hard time to sleep and feel 'alert' and 'restless' at three nights in row.