Romuva is a modern revival of the religious practices of the Lithuanians before their Christianization in 1387. Practitioners of Romuva claim to continue living Baltic pagan traditions which survived in folklore and customs. Romuva is a polytheistic pagan faith which asserts the sanctity of nature and ancestor worship. Practicing the Romuva faith is seen by many adherents as a form of cultural pride, along with celebrating traditional forms of art, retelling Baltic folklore, practising traditional holidays, playing traditional Baltic music, singing traditional "dainos" and songs as well as ecological activism and stewarding sacred places.