The Passion Cross has sharp ends on it. Of course “passion” means the life, death, and resurrection of Jesus. The sharpness of the ends of the cross recall is suffering and death, particularly the pain he endured from the nails through his hands and feet. When all four ends are thus rendered, it recalls the three nails with the longer arm representing the sword that pierced His side. According to the site Seiyaku a blunt, circular finial at the top can represent a halo of Our Lord.