Tarot reading is part of the belief that the cards can be used to understand current and future situations of the client. Some believe the cards are guided by a spiritual force as a guide, while others believe the cards help them in entering into a collective unconscious. One of the most used methods are rolls; among the most popular is the roll as the Celtic Cross.

It should be stressed the purely subjective character having consulted any situation by circulation of tarot cards, as this consultation will vary between tarotista and another, making it impossible to make a scientific description of the system used, and that has led to think some people that the tarot is completely ineffective. Objectively, it is to flip a number of letters that have previously been shuffled randomly distributed in a certain order upside down, and give a performance (value or meaning) to each card according to the relative position that is on the table and in relation to the adjacent letters, so the cards themselves can not "say" something about a particular subject, as it is the tarotista who interprets them. The complexity of establishing the meaning of a letter in relation to the other makes their interpretation is always different from one roll to another, making it a true art. Also this interpretative complexity makes, in many cases, make it impossible for some fans or amateurs tarotistas to "predict" future events or give coherent answers to a consultant.