Mehregan is a holiday for Mehr, the Persian goddess of love, knowledge, peace and commitment. People gathered Saturday to see artwork, hear poetry readings, enjoy the day. By Andrew Edwards, Daily Pilot COSTA MESA -- Mehregan, a major holiday in Persian traditions, is being celebrated this weekend at the Orange County Fairgrounds. The two-day event, which is set to wrap up today, is being called the Persian Harvest Festival in English. Mehregan is one of Persian culture's two most important holidays and is a celebration of the beginning of autumn, said Parastoo Derakhshanian, who represented the Iranian Cultural Center of...