VOW' The term 'VOW of Silence' is a promise to abstain from speaking for a period of time. It is often used in religious contexts, such as in Buddhism, where it is known as the Mauna Vrata, or in Christianity, where it is known as the Benedictine VOW. In some cases, the VOW of silence is taken voluntarily, while in other cases it is imposed as a form of punishment. The VOW of silence is seen as a way to promote self-reflection and spiritual growth.