The Tarot cards allow us to use both logic and intuition to aid our understanding of the world around us. Tarot defines a set of stages in an archetypal change process. By learning the cards one is able to recognise the natural patterns that constantly appear in our lives.
The idea that the Tarot magically tells the future is a nice one, and one that has given many people power over the years, but it is a superstition. Perhaps some people are able to tell the future, but that would have nothing to do with pictures on some pieces of cardboard.
The Tarot provides a way to interpret patterns and, by using pictures rather than words, it allows intuition to power significant leaps in understanding.