PS! extraordinary= astrology, psychic people (ESP), maybe even UFOs, spirits, or other things like that.
I got tarot cards for my birthday. I am extremely happy about it. I also got the manual (explanations of the cards, different spreads, pointers, some FAQs). The manual quoted Jung so many times. The author Hajo Banzhaf explains how tarot cards are the language of pictures. They connect the conscious and real world to the subconscious. The subconscious is connected to the spiritual world and therefore tarot can tell us things from the future (thing that we will get to if our attitude stays the same). It can tell us things that we subconsciously already know but don't want to acknowledge.
Also he explains that there are no coincidences. We tend to call things coincidences when we don't understand them, but in the big picture, they don't exist.
And I do believe that all people and surroundings are connected on a subconscious level so I do believe that tarot cards work.