In carrying out the obligations of the state (dharma negara) the Hindus who are designated as heroes to get the rights to the hero's cemetery are permanent. It means that they have a strong legal basis and their bodies are handed over to the state to be buried there. According to the concept of the death ceremony (pitra yadnya), the body must be immediately cremated (aben) to return the five basic elements (panca maha bhuta) to God. The study was intended to find why the pitra yadnya is importantly implemented for Hindu heroes in hero's cemetery Kalibata. A qualitative method was applied in the present study, structural functionalism theory, religious theory, symbol theory, and legal system theory. Pitra yadnya ceremony was important to be carried out for Hindu heroes in the hero's cemetery Kalibata, namely theologically accelerating the return of the panca maha bhuta to the Creator, sociologically involving the family, the community so that social interaction occurred, and family psychology was happy due to it can carry out pitra yadnya for the deceased. In this case, it was carried out in two stages, namely military ceremonies, and pitra yadnya. Sociologically, it was always involved family and society, therefore, social interactions occurred. The family psychology was happy to be able to carry out pitra yadnya ceremony hoping that the late was happy in the heaven (amor ring acintya). Juridically, the government accommodated in its implementation, while economically there was an economic turnaround, thus, the welfare of the community increased.