Like.,,, a 15% damage perk against members of the opposite six. Also, try the side quest in Riften which involves collection of Dibellan marks for another example of how the gift is used.
Per USEP
Popular goddess of the Eight Divines (and Nine Divines). In Cyrodiil, she has nearly a dozen different cults; some are devoted to women, some to artists and aesthetics, and others to erotic instruction. She also attracts individuals who live and/or espouse an epicurean lifestyle. Dibella created the Brush of Truepaint in answer to a disabled artist's prayers and, more importantly, the Helm of the Crusader for Pelinal Whitestrake to help him defeat Umaril the Unfeathered. She is usually depicted as a slender and attractive human female, and often she is either holding large flowers or as actually having the flowers in place of hands.