The magician Samri Baldwin exposed the tricks of the Davenport brothers in his book The Secrets of Mahatma Land Explained (1895). The medium Swami Laura Horos was convicted of fraud several times and was tried for rape and fraud in London in 1901. She was described by the magician Harry Houdini as "one of the most extraordinary fake mediums and mystery swindlers the world has ever known".
According to James Randi, a skeptic who has debunked many claims of psychic ability and uncovered fraudulent practices, mediums who do cold readings "fish, suggest possibilities, make educated guesses and give options." Randi has a standing offer of $1 million US dollars for anyone who can demonstrate psychic ability under controlled conditions. Most prominent psychics and mediums have not taken up his offer.
In all cases you should explain your motives clearly to the psychic, clairvoyant, spiritual guide or medium you are consulting. Spiritual readings are generally more interactive than psychic readings since they offer better insights about your inner self. A good spiritual reader will encourage users to ask questions and to question themselves so that they could experience the reading on a more personal level.
An experiment conducted by the British Psychological Society in 2005 suggests that under the controlled condition of the experiment, people who claimed to be professional mediums do not demonstrate the mediumistic ability. In the experiment, mediums were assigned to work the participants chosen to be "sitters." The mediums claimed to contact the deceased who were related to the sitters. The research gather the numbers of the statements made and have the sitters rate the accuracy of the statements. The readings that were considered to be somewhat accurate by the sitters were very generalized, and the ones that were considered inaccurate were the ones that were very specific.
Together, the Major and Minor Arcana cards create a comprehensive pictorial language. It is important to remember that all the answers we seek exist innately within the deck, with each card illustrating a person, circumstance, or potential outcome. Since there are no secret puzzles or hidden agendas with tarot, the ability to discern meaning lies within your own narrative interpretation.
And here’s the thing – you may already consciously know the message or insight you receive in a Tarot reading, in which case, the reading can be a heartening confirmation of what you already know. Or, you might be completely unaware of the message until you see it reflected in the cards, in which case you are now empowered to take action based on your new awareness.