Invocation is he act and result of invoking: request assistance through a ritual or formal request, rely on a rule or a tradition. The word or expression used to invoke is also called an invocation.
It can be said that the invocation is made concrete through a incantation, a spell, a appeal, a mandate or one prayer. Through this resource, the person ask for help, a favor or protection.
In the field of religion, the invocation assumes call a supernatural entity: a divinity, a spirit, a demon, etc. Prayers, liturgies, and mantras, for example, serve for invocation.
It is important to note that science has not been able to prove that it is possible to establish communication with a being from another dimension and thus get him to come to ours to assist us. Anyway, in the realms of religion and fantasy, this concept is spoken of quite naturally.
When the invocation is carried out with good intentions, usually the spirit with which the contact is made is kind, pious, and can only help without hurting anyone. Fictional people or characters can summon a be of these characteristics to be cured of a disease or to ask them to assist a third party who is in danger.
However, even with the intention of doing good, it is possible to request the protection of a demon, that is to say, an evil creature, which usually collects each and every one of its favors with curses or abusive conditions. Summoning a demon can bring desired results in no time, but the consequences can be devastating.
Continuing in the field of fiction, there are characters who have learned to dominate certain demons, whom they use with total freedom for their own benefit without fear that they will turn against them. The most experienced wizards can summon a large number of creatures different, with the most varied capacities, that can assist them on the battlefield, both in normal confrontations and against other supernatural beings.
For example, if the fight is against a being capable of manipulating fire, the most appropriate invocation will be the one that brings to our plane a being with the gift of manipulating water or wind. The summoned beings usually have abilities far superior to those of the sorcerer: physical strength far beyond what is humanly possible, manipulation of the elements, free flight without the need for an aerodynamic body or wings, and very high speed of movement.
In the field of poetry, there is talk of invocation to allude to a Figure of speech consisting of a request for inspiration to a muse or a deity. This act is embodied through a dialogue or a question, although not all poets carry it out.
The idea of invocation also appears in colloquial language when referring to something to explain a action or a decision. A journalist, in this context, criticizes a government since he considers that the invocation of social unrest as a justification for a repressive plan of the State is not valid. For this journalist, the rulers cannot argue the repression by alluding to the supposed need to pacify.
The invocation, finally, can be a announcement or a called: “I take the opportunity to invoke sports clubs to promote healthy habits in youth”, “The invocation of the president was not heeded by the opposition sectors”.