Zen is a form of Buddhism that avoids theoretical knowledge and academia in favor of direct, experiential realization through meditation and practice. Zen maintains that all beings have Buddha-nature, wisdom and virtue. Zen emphasizes that Buddha-nature is the nature of the mind itself. The purpose of Zen is to expand this Buddha-nature through meditation and mindfulness of daily experiences. Zen practitioners believe that this provides new perspectives and insights on existence, leading to enlightenment. "Zen Koans", provides the iPhone user with easy access to wonderful and insightful Zen koans so that the user might daily grow toward wisdom and enlightenment.