This is done in hopes that for the rest of the year the bad spirits leave the island alone.
Did you know that Bali has a celebration sorta their New Years thing called Nyepi? When I went to Bali I had no idea about this day but it turned out I was there during Nyepi and got to witness it first hand.
Swipe for the night before! This pic is from trying to kill time on Nyepi day and enjoying the quiet.