Palm And Future
Simply put, palmistry is the art of analyzing the physical features of the hands to interpret personality characteristics and predict future happenings. Chiromancy analyses are time-honored: Just as our ancient ancestors gazed into the night sky and created powerful correspondences between the movements of the planets and events here on Earth, palm readers observe how the hand's attributes connect to greater themes. Occult traditions are based on the esoteric axiom "As above, so below," and within palmistry, the palm is accordingly seen as a microcosm of the universe.
While I encourage you to develop your own interpretations of different creases and shapes, familiarizing yourself with historical conventions can help you develop a rich vocabulary that is applicable to any querent (that's the person seeking answers from a reading).