Satu Suro has numerous associations in folk tales and superstitions in Java, Indonesia that vary considerably through regional variation in cultural practices. The prevalent theme through most superstitions is one of the danger of going out from the home - similar to the Balinese day of Nyepi. There is an Indonesian film that exploits the danger - called Malam Satu Suro 
Rituals during Satu Suro Night/Eve 
During Satu Suro Night, there are several rituals that can be conducted, such as:
- Meditation is a common practice of Kejawen/Shiva-Budha religion. The objective is to have self-instropection of what has been done within the past year and then to prepare what should be done in the future.
- Tapa Bisu: To meditate while being silent and not talking during the ritual
- Tapa Kungkum: To meditate while submerged in water
- Tirakatan and tuguran: The act of not sleeping the whole night while having self-reflection and prayer, usually accompanied by Puppet Shadow performance. Also many travel to sacred grave sites to perform Tirakatan.
- Ruwatan: rituals to free the surroundings (e.g. of a house, building or area) from evil spirits and calamity.
See also 
- Kamajaya, 1915- (1992) 1 Suro tahun baru Jawa perpaduan Jawa-Islam Yogyakarta : UP. Indonesia, 1992
- see the indonesian Wikipedia article http://id.wikipedia.org/wiki/Malam_Satu_Suro
Further reading 
- Soebardi. Calendrical traditions in Indonesia Madjalah IIlmu-ilmu Satsra Indonesia, 1965 no.3.
- Excellent introduction to regional practices
- The Javanese Calendar by Matthew Arciniega
- Javanese Calendar and Its Significance to Mystical Life, by Suryo S. Negoro
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