Experiential knowlege is knowledge gained through experience as opposed to a priori (before experience) knowledge. In the philosophy of mind, the phrase often refers to knowledge that can only be acquired through experience, such as, for example, the knowledge of what it is like to see colours, which could not be explained to someone born blind. See also qualia. A priori knowledge is can Adam or Eve know what water feels like on their skin prior to touching it for the first time?