People visit psychics in order to understand something about their lives that they cannot understand on their own. Whether or not psychic abilities are real, those who believe often feel more content having this understanding. Personally, I don't need a psychic for understanding. There are certain things that cannot yet be understood. The "search" cannot end at this time.
Different types of psychics and their abilities and how they can make forecasts and predictions using their powers or aided by different tools. https://www.russellgrantpsychics.co.uk/site/special-articles/psychic-mediums-info-graphic-2_26071.html