What is a tarot reading or divination? Generally, divination is defined as: seeking knowledge of the future or unknown by supernatural means. Supernatural is defined as: of or relating to an order of existence beyond the visible observable universe especially of or relating to a god, demigod, spirit, or devil.
If we are believers in the Creator, by whatever name(s) you choose do define IT as. We must accept that all things that exist, regardless of how comfortable we are with their existence are NATURAL. While it possible for anyone to do divination, the probability of everyone studying and applying themselves to developing their abilities and a comprehensive understanding of their chosen oracle and the language which that oracle uses to communicate is slim.
Therefore, people can provide their services as tarot readers, psychics, astrologers, and geomancers. I readily admit there are plenty charlatans out there. But, for the most part, reputable individuals are competent and skillful in translating the language of their chosen oracles to their clients.
The purpose of a reading is to gain insight into the future or a situation that is unknown to you. What is learned from your reading give you the power to alter and change the future. A reading provides your insight into the future or a situation as it stands now. After gaining that insight, you have a CHOICE to act and change that foreseen future. With this being said. . . THERE IS NO SUCH THING AS BAD NEWS FROM A READING! Even If we receive unsettling information in a reading there is always an opportunity to alter the outcome or even lessen the blow which has been dealt by fate.