Many cultures that emerged in the past have faded and even disappeared with the passage of time and the changing times and then been replaced with new cultures. Unlike the case with the a’lappasa jangang culture as a cultural heritage in Sompu, even though it has been around for a long time, it still exists among the Sompu people. In fact, it is a cultural heritage that is maintained, sustainable, and still being implemented. The preservation of this culture is quite interesting to study in more depth; what is the cause of its birth, what is the form of its implementation, and why this culture has survived to this day? This study aims to get answers to the questions above. This study uses data collection methods using interview and observation techniques equipped with interview and observation guidelines. The data that has been obtained is analyzed and qualitatively described through the arrangement of units, data categorization and data interpretation. The results indicate that the process a’lappasa jangang is a symbol to cover the shame and shortcomings of the Sompu community and a symbol of letting go of bad luck or repelling bad luck before carrying out an important event, especially a wedding. This culture has survived to this day because there are indications that this culture is related to matters of faith. This is understood from the belief of the Sompu indigenous people that if they do not carry out the a’lappasa jangang process before carrying out the wedding ceremony, they will experience bad luck and disaster in life.