Observed from 6 a.m. until 6 a.m. the next morning, Nyepi is a day reserved for self-reflection, and as such, anything that might interfere with that purpose is restricted. The main restrictions are no lighting fires (and lights must be kept low); no working; no entertainment or pleasure; no traveling; and, for some, no talking or eating at all. The effect of these prohibitions is that Bali's usually bustling streets and roads are empty, there is little or no noise from TVs and radios, limited access to Internet and few signs of activity are seen even inside homes. The only people to be seen outdoors are the Pecalang, traditional security men who patrol the streets to ensure the prohibitions are being followed.