And the fact that it always seems to rain on the morning of Matsu's birthday procession is because Lord Paosheng, having failed in his pursuit of Matsu, is intentionally trying to wash away her rouge.
而媽祖誕辰出巡總有雨水，則是保生大帝在追求不得後，故意施法降雨，要洗去媽祖胭脂。