The Nias tribe generally chooses urban areas as a place to migrate because the city symbolizes dynamism and is the center of all progress. People who decide to migrate must determine the right destination area.  The people of Nias migrate to an area or leave their area for several reasons. Firstly, economic reasons, the difficulty of meeting living needs in their hometown is one of the factors that most influences the migration activities carried out by the people of Nias. Secondly, there is a social reason, there is an opinion that people who migrate to the other side are considered to have broader experience/insight, have a lot of wealth and money. Third, family reasons, the people of Nias migrate because they already have or have had family members or friends who have migrated first. In this research, researchers focused on the economic adaptation strategies of Nias migrants who migrated to Tarutung sub-district. The researcher chose the title of this research to find out how Nias migrants adapt to the economy in Tarutung. Researchers chose to conduct research on economic adaptation strategies for Nias migrants in Tarutung because the economy is a fundamental aspect of human life, including migrants. The type of research used in this research is qualitative approach research. Qualitative research is a research procedure that produces descriptive data in the form of written or spoken words from people and observed behavior.

The aim of the research is to find out the meaning of the fangasi ritual as a traditional ceremony after the death of the Nias tribe in Ononazara village, Tugala Oyo subdistrict, North Nias district. The research method used in this research is descriptive qualitative research about the meaning of the fangasi ritual as a traditional ceremony after the death of the Nias tribe in Ononazara village, Tugala Oyo subdistrict, North Nias district. The result of this research is that the meaning of the fangasi ritual is the highest form of respect that the Nias tribe has for every person's life. The meaning of the fangasi ritual in Ononazara village is the last event for the person who has died. The fangasi ritual is carried out depending on its position in custom and also as a form of a child's obligation to his parents who have died with the aim of paying off the debts of his parents or the person who died while he was alive in the world. It can be concluded that the meaning of the fangasi ritual is a traditional ceremony implemented in the village of Ononazara, which is passed down from generation to generation, which aims to resolve the burden on the family of the deceased as a sign of final respect, and so that the spirits of the deceased will rest in peace.