Michael Shermer criticized mediums in Scientific American, saying, "mediums are unethical and dangerous: they prey on the emotions of the grieving. As grief counselors know, death is best faced head-on as a part of life." Shermer wrote that the human urge to seek connections between events that may form patterns meaningful for survival is a function of natural evolution, and called the alleged ability of mediums to talk to the dead "a well-known illusion of a meaningful pattern."
The oldest surviving tarot cards are the 15 or so Visconti-Sforza tarot decks painted in the mid-15th century for the rulers of the Duchy of Milan. A lost tarot-like pack was commissioned by Duke Filippo Maria Visconti and described by Martiano da Tortona probably between 1418 and 1425, since the painter he mentions, Michelino da Besozzo, returned to Milan in 1418, while Martiano himself died in 1425. He described a 60-card deck with 16 cards having images of the Greek gods and suits depicting four kinds of birds. The 16 cards were regarded as "trumps" since in 1449 Jacopo Antonio Marcello recalled that the now deceased duke had invented a novum quoddam et exquisitum triumphorum genus, or "a new and exquisite kind of triumphs". Other early decks that also showcased classical motifs include the Sola-Busca and Boiardo-Viti decks of the 1490s.
Celtic Cross Tarot card reading predicts your future by reading the cards. This is different from prophesies using calculations of date, time and year of birth. Each prediction or card selection may not indicate the same result. The accuracy depends on your intention and concentration at the time of selection. Thus, it is very important to concentrate hard to achieve the most significant outcome.