As per Vedic Dharma Jeevathama should join with Paramathma if that will not happens the Prana will move around the world and wait for Mukthi.
Finally this may affect the departed soul s family. By giving Thila Homam at Sri Parasurama temple that issues will be clear. And all the hurdles will clear
Very famous for Pithru Karyiam (Oblations for the departed souls)every body who lives as per Hindu Way of life should do Panch yanjanm Prithu Yanjam in one of that . it is being done on every year for departed soul.
Once we do this our forefathers will bless in all means .so many people follows this will benefited with timely kids, job, Marriage, happiness in the life. so better we must do the this yagam for departed soul. This homam will do along with Annadhanam to devotes.