"Leida de cartas gratis" is a Spanish phrase that translates to "the reading of cards for free." It refers to the practice of Tarot card reading, a form of telling the future through the selection of cards from a special deck.
A Tarot deck typically features 78 illustrated cards, each with its own meaning. The "Death" card, for example, may signify "ending" or "transition". A reader gathers an idea of the future of his client through the order in which cards are pulled from the deck. Free Tarot readings in Spanish, also called "tirada gratis del tarot," are commonly available online.