Demon in the context of "Goblin"

In European folklore of the medieval and early modern periods, familiars (strictly familiar spirits, as "familiar" also meant just "close friend" or companion, and may be seen in the scientific name for dog, Canis familiaris) were believed to be supernatural entities, interdimensional beings, or spiritual guardians that would protect or assist witches and cunning folk in their practice of magic, divination, and spiritual insight. According to records of the time, those alleging to have had contact with familiar spirits reported that they could manifest as numerous forms, usually as an animal, but sometimes as a human or humanoid figure, and were described as "clearly defined, three-dimensional... forms, vivid with colour and animated with movement and sound", as opposed to descriptions of ghosts with their "smoky, undefined form[s]".

When they served witches, they were often thought to be malevolent, but when working for cunning folk, they were often considered benevolent (although there was some ambiguity in both cases). The former were often categorized as demons, while the latter were more commonly thought of and described as fairies. The main purpose of familiars was to serve the witch, providing protection for them as they came into their new powers.

Supernatural phenomena or entities are those beyond the laws of the nature. The term is derived from Medieval Latin supernaturalis, from Latin super- 'above, beyond, outside of' + natura 'nature'. Although the corollary term "nature" has had multiple meanings since the ancient world, the term "supernatural" emerged in the Middle Ages and did not exist in the ancient world.

The supernatural is featured in religious and folkloric contexts, but can also feature as an explanation in more secular contexts, as in the cases of superstitions or belief in the paranormal. The term is attributed to non-physical entities, such as spirits, angels, demons, gods, and goddesses. It also includes claimed abilities embodied in or provided by such beings, including magic, telekinesis, levitation, precognition and extrasensory perception.

In most contexts, the concept of good denotes the conduct that should be preferred when posed with a choice between possible actions. Good is generally considered to be the opposite of evil. The specific meaning and etymology of the term and its associated translations among ancient and contemporary languages show substantial variation in its inflection and meaning, depending on circumstances of place and history, or of philosophical or religious context.

In folklore, a ghost is the soul or spirit of a dead person or non-human animal that is believed by some people to be able to appear to the living. In ghostlore, descriptions of ghosts vary widely, from an invisible presence to translucent or barely visible wispy shapes to realistic, lifelike forms. The deliberate attempt to contact the spirit of a deceased person is known as necromancy, or in spiritism as a séance. Other terms associated with it are apparition, haunt, haint, phantom, poltergeist, shade, specter, spirit, spook, wraith, demon, and ghoul.

The belief in the existence of an afterlife, as well as manifestations of the spirits of the dead, is widespread, dating back to animism or ancestor worship in pre-literate cultures. Certain religious practices—funeral rites, exorcisms, and some practices of spiritualism and ritual magic—are specifically designed to rest the spirits of the dead. Ghosts are generally described as solitary, human-like essences, though stories of ghostly armies and the ghosts of animals other than humans have also been recounted. They are believed to haunt particular locations, objects, or people they were associated with in life. According to a 2009 study by the Pew Research Center, 18% of Americans say they have seen a ghost.

This is a list of locations that are (or have been) said to be haunted by ghosts, demons, or other supernatural beings throughout the world. Reports of haunted locations are part of ghostlore, which is a form of folklore.

A fairy (also called fay, fae, fae folk, fey, fair folk, or faerie) is a type of mythical being or legendary creature, generally described as anthropomorphic, found in the folklore of multiple European cultures (including Celtic, Slavic, Germanic, and French folklore), a form of spirit, often with magical, metaphysical, supernatural, or preternatural qualities.

Myths and stories about fairies do not have a single origin but are rather a collection of folk beliefs from disparate sources. Various folk theories about the origins of fairies include casting them as either demoted angels or demons in a Christian tradition, as deities in pagan belief systems, as spirits of the dead, as prehistoric precursors to humans, or as spirits of nature.

Witchcraft is the use of magic by a person called a witch. Traditionally, "witchcraft" means the use of magic to inflict supernatural harm or misfortune on others, and this remains the most common and widespread meaning. Though the idea of witchcraft is largely imaginary, it has nevertheless served in many cultures as a way to explain the presence of evil. The belief in witches has been found throughout history in a great number of societies worldwide. Most of these societies have used protective magic or counter-magic against witchcraft, and have shunned, banished, imprisoned, physically punished or killed alleged witches. Anthropologists use the term "witchcraft" for similar beliefs about harmful occult practices in different cultures, and these societies often use the term when speaking in English.

Belief in witchcraft as malevolent magic is attested from ancient Mesopotamia, and in Europe, belief in witches traces back to classical antiquity. In medieval and early modern Europe, accused witches were usually women who were believed to have secretly used black magic (maleficium) against their own community. Usually, accusations of witchcraft were made by neighbors of accused witches, and followed from social tensions. Witches were sometimes said to have communed with demons or with the Devil, though such accusations were mainly made against perceived opponents of the Church. It was thought witchcraft could be thwarted by white magic, provided by 'cunning folk' or 'wise people'. Suspected witches were often prosecuted and punished, if found guilty or simply believed to be guilty. European witch-hunts and witch trials in the early modern period led to tens of thousands of executions. While magical healers and midwives were sometimes accused of witchcraft, they made up a minority of those accused. European belief in witchcraft gradually dwindled during and after the Age of Enlightenment.

Evocation is the act of evoking, calling upon, or summoning a spirit, demon, deity or other supernatural agents, in the Western mystery tradition. Conjuration also refers to a summoning, often by the use of a magical spell. The conjuration of the ghosts or spirits of the dead for the purpose of divination is called necromancy. Comparable practices exist in many religions and magical traditions and may employ the use of mind-altering substances with and without uttered word formulas.

Psychopomps (from the Greek word ψυχοπομπός, psychopompós, literally meaning the 'guide of souls') are creatures, spirits, angels, demons, or deities in many religions whose responsibility is to escort newly deceased souls from Earth to the afterlife.

Their role is not to judge the deceased, but simply to guide them. Appearing frequently on funerary art, psychopomps have been depicted at different times and in different cultures as anthropomorphic entities, horses, deer, dogs, whip-poor-wills, ravens, crows, vultures, owls, sparrows, and cuckoos. In the case of birds, these are often seen in huge masses, waiting outside the home of the dying.