Manifestation

The term "Manifestation" simply describes how a supernatural entity chooses to occur or exist on Earth. Angels and Demons manifest and physical appear on Earth via possessing a human host. Although Angels require the permission and consent of the human host for possession to be possible, whereas Demons can involuntary claim a human's body without the consent of the human host. Cupid angels seem capable of instantaneous manifestation. Gods and Ghosts, however, do not use a human host to exist physically on Earth, instead they assume human form, as do the Four Horsemen of the Apocalypse. Acheri Demons tend to manifest on Earth in the form of young girls; like Cupid angels, Acheri demons seem capable of instantaneous manifestation, as proving when an Acheri immediately manifests after being summoned.

Key terms pertaining to Manifestation

Possession - The term "Possession" describes the process in which a supernatural entity takes over a human's body voluntarily or involuntarily depending on the entity, effectively controlling the thoughts, speech and actions of the host.

Vessel - The term "Vessel" describes a human's body that an Angel occupies or inhabits after bearing the consent or permission given by the host, as it is required for all angels.

Enochian Chant - The term "Enochian" refers to many things concerning angels in general. There is a specific Enochian chant that can forcibly remove Angels from their Vessel, sending them back to Heaven.

Exorcism - The term "Exorcism" describes a process Demons experience that forcibly removes them from their human host, sending them back to Hell.

Binding Link - The term "Binding Link" refers to a specific bond or connection that Demons can use to bind or lock themselves inside a human's body, in which case exorcism proves ineffective against the demon within the host.

All of the information documented below only describes the first time a particular important Angel or Demon manifests on Earth using a human host.

Important Occurrences with Angels

4.01 Lazarus Rising

Angel Castiel manifests on Earth in his Vessel Jimmy Novak while appearing before Dean Winchester.

4.07 It's The Great Pumpkin, Sam Winchester

Angel Uriel manifests on Earth in a Vessel to aid Castiel in preventing the breaking of a Seal.

4.17 It's A Terrible Life

Following sometime after Uriel's death in 4.16 On The Head Of A Pin, Angel Zachariah manifests on Earth in a Vessel.

4.20 The Rapture

During a brief flashback, we witness Castiel descending form Heaven, effectively manifesting on Earth in his Vessel Jimmy Novak for the first time chronologically.

5.01 Sympathy For The Devil

Archangel Lucifer manifests on Earth in an alternate Vessel named Nick.

5.03 Free To Be You And Me

Archangel Raphael manifests on Earth in his chosen Vessel Donnie Finnerman.

5.13 The Song Remains The Same

Archangel Michael manifests on Earth in an alternate true Vessel name John Winchester while in the year of 1978 during time travel.

Important Occurrences with Demons

1.01 Pilot

Demon Azazel manifest on Earth in a male's body. His silhouette is seen craning over Sam's crib.

1.11 Scarecrow

Demon Meg manifests on Earth in a host named Meg Masters.

3.01 The Magnificent Seven

The Seven Deadly Sins Demons manifest on Earth by occupying seven human hosts. Demon Ruby manifests on Earth in a female's body attempting to follow Dean, Sam and Bobby.

3.04 Sin City

Demon Casey manifests on Earth in a female's body.

3.09 Malleus Maleficarum

Demon Tammi manifests on Earth in a female's body to warn the Dean and Sam Winchester of a New demonic Leader who is causing chaos in the west and she tells them that she is coming to kill them.

3.12 Jus in Bello

Demon Lilith manifests on Earth in a young girl's body.

4.07 It's The Great Pumpkin, Sam Winchester

Demon Samhain manifests on Earth in a dead teacher and witch's body, causing chaos and destruction in a small town.

4.09 I Know What You Did Last Summer

Demon Alastair manifests on Earth in a pediatrician's body attempting to retrieve Anna Milton for informative purposes concerning what the angels are planing because she can hear the angels converse with each other in Heaven.

4.22 Lucifer Rising

During a brief flashback, we witness Azazel manifesting on Earth for the first time chronologically in a head priest's body.

5.10 Abandon All Hope

Demon Crowley manifests on Earth in a New York literary agent's body, locating Dean and Sam, telling them to kill Lucifer with the Colt.

5.20 The Devil You Know

Demon Brady manifests on Earth in a male's body, taking part in topics concerning the Swine flu epidemic.

Important occurrences with the Four Horsemen

5.02 Good God Y'All

Horseman War assumes the form a Roger, a dead man buried in a ditch. He begins to alter human perception of people, specifically effecting the perception of humans in a small town.

5.14 My Bloody Valentine

Horseman Famine assumes human form. His presence amplifies the urges, desires and cravings of many people in a small town.

5.19 Hammer Of The Gods

Horseman Pestilence assumes human form. He arrives at a gas station, requesting an unsubscribed flu formula for daytime, hiding his true identity as the Green Horseman.

5.21 Two Minutes To Midnight

Horseman Death assumes human form shortly after his rising following the invocation preformed by Lucifer. He gives Dean his Ring, so that he can assemble it with the other three which together are able to reopen Lucifer's Cage.