Collecting qualitative data used by researchers in conducting research intends to answer problems related to the function and meaning of lamak in Hindu belief in the celebration of Galungan and Kuningan days. Lamak has a function and is full of meanings marked by the accompanying symbols, by the researchers the main goal of this research, which is located in Bolaang Mongondow Regency, Dumoga Tengah District, Werdhi Agung Village. The data in this study were collected through library research, documentation studies, interviews, and observations. These data were verified through data presentation, data reduction, and drawing conclusions. The discussion of this study shows that lamak has a decorative function that is placed on pelinggih, temples, and also on penjor during Galungan and Kuningan holidays.