Types of entities
EARTHBOUND SPIRITS:
These are spirits of the dead which have remained trapped here.
DEMONS: Entities of pure darkness and evil.
INCUBUS/SUCCUBUS: Male and female (respectively) demons that are thought to attack people while they sleep, often having nonconsensual sex with them.
TULPAS: These are thought forms so powerful and persistent that they’ve taken on a physical presence.
CURSE: This is negative energy sent to you by another individual with bad intentions.