Trick or treat , meaning what?..

Originally Trick or Treat was a popular legend of Celtic origin, according to which not only the spirits of the dead were free to roam the Earth on Halloween night, but all kinds of entities from all spiritual realms. Among them was one terribly malevolent wandering through towns and villages, going from house to house asking precisely "trick or treating". The legend says that it was better to treatment, regardless of the cost that it had therefore not agree with this spirit (that would be called Jack O'Lantern, known with the traditional Halloween pumpkins) he would use their powers to "trick" that would curse the house and its inhabitants, giving all kinds of misfortunes and curses as family sick, kill livestock to pests or to burn the house itself. To protect the idea of ​​creating horrific forms of pumpkins, to avoid encountering this spectrum (and eventually, because of the mental association between the spirit and pumpkins, the name of this would be given to them , which are known today as when it reaches this party).
Actually, although the translation is widespread "trick" in Castilian by English "trick" and "treatment" literally "treat" in the case of "Trick-or-treating" is not a trick itself but While a fright or a joke so a more accurate translation would be for example "fright or sweet 'or mischief or sweet Today, children dress up for the occasion and walk the streets trick or treating door to door. After knocking children utter the phrase "trick or treat", "trick or treating" or "naughty or sweet" (from the English term trick or treat). If adults give them candy, money or any other reward, is interpreted to have accepted the deal. If instead they refuse, the boys spend a little joke, the most common throw eggs or shaving cream on the door.
In Mexico there is a version called Calaverita in which children ask you can I have my calaverita? instead of Trick or Treat? referring to a skull-shaped candy.
The journey in search of treats children probably link with the Dutch tradition of the Feast of St. Martin