The nodes are usually represented as spheres and the lines are usually represented as paths. The nodes usually represent encompassing aspects of existence, God, or the human psyche. The lines usually represent the relationship between the concepts ascribed to the spheres or a symbolic description of the requirements to go from one sphere to another. The nodes are also associated to deities, angels, celestial bodies, values, single colors or combinations of them, and specific numbers. The columns are usually symbolized as pillars. These pillars usually represent different kinds of values, electric charges, or types of ceremonial magic. It is usually referred to as the Kabbalistic tree of life in order to distinguish it from other concepts with the same name. In the Jewish Kabbalah, the nodes are called sephiroth. The diagram is also used by Christian Cabbala, Hermetic Qabalah and Theosophy. The diagram is believed to be derivable from the flower of life.