The cult of Kappalpei is based on legends of foreigners coming over by ships and landing along the coast where the Vedar usually lived. They are propitiated to ward off evils and hard times. Kumara Deivam was also noted amongst the primitive Sinhalese village of Gonagolla in the Ampara District known as Kumara Devio. Jon Dart in the 1980s found that these deities were no longer worshipped, but were replaced by the Periyasami cult. The worship pattern is a combination of Devil-dancing called "Sandangu" ("ceremony" in Tamil) and orthodox Hindu Agamic rituals. The devil-dancing is unique to Vedar, but the aspect of spirit possession as a part of devil dancing is not unique to Vedar. Locals Tamils also experience spirit procession and trance states during religious festivals. During devil-dancing ceremonies, related family groups congregate in family-owned worship centers and build platforms known as "Pandals". These Pandals may have a weapon, such a lance known as a "Vel", installed in their middle, a construction similar to the "Kirikoroha" function of the interior Veddas as well. Male family members dance throughout the night and as part of the ceremony some become possessed by spirits, sometimes those of their recently diseased family members. This pattern is similar in nature to the ancestor-worshipping patterns of the interior Veddas. Most of the Sadangu locations are temporary ones without related permanent structures over them, but some have been turned into temples. In the village of Palchennai, one of these temporary structures has become a temple now identified with Hindu high god Vishnu. Vedars also participate in Tamil folk dramas called "Kuttus" that depict scenes from Hindu epics such as Mahabharatha and Ramayana. Vedar use the Sri Lankan Tamil dialect peculiar to the region, known as Batticaloa Tamil dialect, in their day to day conversations. Vedar children also study in that language in schools. During "Sadangu" ceremonies, those who are possessed by spirits speak in a mixed language that they call "Vedar Sinkalam"(Vedar Sinhala") or "Vedar Bhasai" which is the Vedda language of the interior Vedas. This "Vedar Sinkalam" is mixed with many Tamil words, as people no longer know the language. There is evidence at some point in the past that the people were bilingual in Vedda language and Tamil, but that is no longer the case.