A ritual is a set of actions, performed mainly for their magic value in the series. In most of them, black magic is involved; however, there are a number of rituals that do not involve it, as they were created by angels, for example.
In the series, there are a number of rituals that has been shown with various meanings, such as exorcising demons, invoking ghosts and more. Witches normally perform them as a method to achieve their goals.
Rituals can be performed by any human or supernatural creature.
As seen in the series, most of the rituals have Latin incantations to recite, so they can be well performed. Other features are: the common use of a circle with various symbols (which can be Celtic, Greek or Runic depending of which ritual is performed), the fee of blood or the use of herbs.
There are a number of rituals that have been shown in the series.
Ritual to put the Witnesses to restEdit
When the Witnesses rise, Bobby discovers a ritual that will put them all to rest, but it needs to be performed over an open fire, thus leaving the caster vunerable to the spirits as they perform the ritual. Among the ingredients needed are opium, hemlock and wormwood. A symbol must be drawn on a flat surface and the ingredients mixed in a bowl over it as a spell is recited. Once the spell is done, the ingredients must be tossed into a fire which will then send out a wave of energy that puts all the Witnesses to rest.
Spirit Summoning RitualEdit
The ritual is used to call upon someone already dead in the form of a spirit. It consists in having prepared four lit candles at the ends of a squared paper with a ritual circle on it and a object belonging to the deceased, and a bowl with herbs at its side, in the centre of a circle made of salt. The performer recites the following incantation in Latin: "Amate spiritum obscure / Te quaerimus / Oramus nobiscum colloquere / Apud nos circita", as he makes the circle of salt and, at the end of the incantation, throws a lit matchstick at one side of the paper without burning it.
There are no details about the composition of the candles and which herbs are used in the mix, as they probably need special properties to summon the spirit (though, they can also have no special components).
It appeared in the chapter 'Weekend At Bobby's', in which Bobby Singer used it to call upon Gavin McLeod, Crowley's son from the time when he was still human. To do so, Bobby used a ring that Gavin had when he was alive.
Demon Summoning RitualEdit
This ritual can used to summon demons, and it consists in having a bowl with mixed herbs alongside seven lit candles in a specifical order with lines that connect them (this can be done with chalk). To effectively perform the ritual, blood must be offered by dropping it on the herbs, while recitating a Latin incantation: [...] "Et ad congregandum / Eos coram me". At the end, a matchstick must thrown at one side of the bowl.
It appeared in "Weekend At Bobby's", as it was performed by Bobby Singer to summon the demon Crowley. Sam and Dean later perform the ritual in "Meet The New Boss," "There Will Be Blood" and "Survival of the Fittest" to summon Crowley when they need him. The last time, Crowley doesn't appear immediatly as he is within a Devil's Trap, but comes later, having heard the summons.
Reaper Trapping RitualEdit
Demon Killing RitualEdit
The Prophet Kevin Tran discovers a ritual in The Word of God that completly obliterates demons and the people they are possesing, but passes it off as a ritual to open the Gates of Hell, tricking the demons into bringing him the nessacary ingredients. Once all of the ingredients are in place, he drops a lit match into the bowl of ingredients and a wave of energy is emmited that disintergrates all nearby demons. Performing this ritual allows Kevin to escape Crowley.