Pantheism, deism, and mysticism all fit together, like pieces of a puzzle, into monotheism. They are all applicable interpretations of monotheistic thought and belief. There are subtle differences that separate each belief, but they tie into the belief of a single God or Supreme Being.
                 Monotheism, the belief of a single God or Supreme Being, is the parent of this family of philosophies. It is the antithesis of both polytheism (the belief in more than one god), and atheism (the disbelief of a god). Many major religions, including Judeo-Christian religions, are monotheistic. Monotheism, unlike deism, pantheism, and mysticism, is a religious system; the rest are religious philosophies.
                 The word Deism signifies the belief in a single God and in a religious practice founded solely on natural reason rather than on supernatural revelation.  Deism is closely related to all other “isms” in its category and yet it is not the same.  For example, Deism and Monotheism are very closely related because Monotheism is the belief in one God.  Deism also dictates that there is one God, but the only difference is that the Deist believes solely on natural reason, while the Monotheist also believes in supernatural reason.
                 Mysticism is the immediate and direct knowledge of God through personal religious experiences.  This belief is not dependant on the organization of religion, but solely on the quality of life that follows the experience.  The mystical life is characterized by the enhanced vitality, productivity, serenity, and joy as the inner and outward aspects harmonize in union with God.
                 Pantheism is divided into two schools of thought. In one, it is believed that all is within God; in the other, all is God. Some of the interpretations of pantheism have been derived from religious experience, while others stem from artistic or philosophical roots. All forms of pantheism are monotheistic due to the belief in one God or Supreme Being.
                 All of these “isms” are closely related, but that which distinguishes one from the other makes them unique.  These terms are related in the sense that they are based on religious beliefs, and the faith in God.