Mauni Amavasya is the annual day of silence. A day of speech fasting and silence feasting. Silence is observed at the level of speech, senses, gestures, and action. From the silence of the manas/mind, one gives birth to Swayambhu (one's own purified Self). This day symbolizes the quieting of the lowly desires and upholding of the dharma celebrated by Yogis/inis and Sadhakas. A very special day for mental and emotional purification.