Watch Free Online HD Moviesjoy. "Dare to come, you who defy Venus!" cries Thaïs, the priestess of Venus, to ascetic monk Athanaël, determined to save her soul by converting her to Christianity. This challenge precipitates the action of Thaïs, Massenet's operatic masterpiece, staged here by Jean-Louis Grinda at the Opéra de Monte-Carlo with Jean-Yves Ossonce conducting!