Cleansing for Nyepi involves a sacred ritual known as Melasti, a significant and ceremonial event that prepares the entire island for the tranquil observance of Nyepi, the Balinese New Year's Day and Day of Silence. Melasti is a purification ceremony held in the days leading up to Nyepi, symbolizing the cleansing of both the natural and spiritual elements of Bali.

During Melasti, communities gather near water sources, such as beaches or sacred springs, accompanied by colorful processions. Elaborate rituals, prayers, and offerings take place, conducted by priests or spiritual leaders. The purpose is to purify the sacred objects, temple paraphernalia, and effigies of gods and goddesses, which are then carried to the water for ceremonial bathing.

This cleansing process is believed to purify the entire island, removing impurities and negative energies accumulated throughout the year. It symbolizes a collective effort to start anew, welcoming the arrival of the Balinese New Year with a clean slate.

The ceremonial activities during Melasti are vibrant, filled with traditional music, dance, and rituals that reflect the island's rich cultural heritage. The entire community actively participates in this event, reinforcing a sense of unity and spiritual connection as they prepare for the serene and contemplative day of Nyepi that follows.