Ghosts
Ghosts are believed to be the spirits or souls of deceased people, who continue to exist in the physical world after their bodies have died. They are often thought to be invisible or translucent, and may be seen or sensed by certain people.
Ghouls
Ghouls are believed to be evil spirits or entities that are associated with death and decay. They are often depicted as demonic or monstrous in appearance, and may have the ability to possess or control the living.
Orbs
Orbs are spherical objects that are often seen in photographs or on video, and are believed by some to be the spirits or energy of deceased people. They are often thought to be translucent or glowing, and may appear in various colors.
Conclusion
Overall, ghosts, ghouls, and orbs are supernatural or paranormal entities that are believed by some to exist in the physical world. While these entities are not accepted by mainstream science or religion, they continue to be a subject of fascination and study for many people.