The Tarot was developed by the Masters of Wisdom, also known as the Inner School, of which there are 36 individuals incarnate and discarnate operating on the planet currently. The cards were created to hide the Ageless Wisdom teachings through symbolic representations of our consciousness in different forms. The pictures of inner symbolism were placed on playing cards to hide the true inner wisdom teachings from the organized church at that time, (about the 12 century), because the Church would kill anyone not following the current dogma of Christianity, thus the secrecy was extremely important to those who wished to learn the inner teachings. The Minor Arcana are the ones most people use for divination purposes, although the Major Arcana (the 22 Keys) are mostly used in the work I practice, that of practical occultism, in the work of the Builders of the Adytum mystery school. The true purpose for the keys is the transmutation of the inner self to achieve a higher state of consciousness, a Buddahood, if you will of becoming a self-enlightened human being and eventually breaking the need for reincarnation. The pictures on the Keys help us to stimulate those inner areas of our consciousness for transformation of the personality through the  subconscious mind. These keys can also be used for divination purposes to help others find answers through principal of understanding of their experiences.