plane Charles Webster Leadbeater wrote: In the mental world one formulates a thought and it is instantly transmitted to the mind of another without any expression in the form of words. Therefore on that plane language does not matter in the least; but helpers working in the astral world, who have not yet the power to use the mental vehicle. Annie Besant wrote that "The mental plane, as its name implies, is that which belongs to consciousness working as thought; not of the mind as it works through the brain, but as it works through its own world, unencumbered with physical spirit-matter." A detailed description of the mental plane, along with the mental body, is provided by Arthur E. Powell, who has compiled information in the works of Besant and Leadbeater in a series of books on each of the subtle bodies. According to Hindu occultism the mental plane consists of two divisions, the lower division is known as heaven (swarglok) and the upper division is known as the causal plane (maharlok). Satguru Sivaya Subramuniyaswami wrote: The causal plane is the world of light and blessedness, the highest of heavenly regions, extolled in the scriptures of all faiths. It is the foundation of existence, the source of visions, the point of conception, the apex of creation. The causal plane is the abode of Lord Siva and his entourage of Mahadevas and other highly evolved souls who exist in their own self-effulgent form—radiant bodies of centillions of quantum light particles. Sri Aurobindo developed a very different concept of the mental plane, through his own synthesis of Vedanta (including the Taittiriya Upanishad), Tantra, Theosophy, and Max Théon ideas (which he received via The Mother, who was Theon's student in occultism for two years). In this cosmology, there are seven cosmic planes, three lower, corresponding to relative existence (the Physical, Vital, and Mental), and four higher, representing infinite divine reality (Life Divine bk. 1 ch. 27) The Aurobindonian Mind or Mental Plane constitutes a large zone of being from the mental vital to the overmental divine region (Letters on Yoga, Jyoti and Prem Sobel 1984), but as with the later Theosophical concept it constitutes an objective reality of sheer mind or thought. Buddhic/Intuitional/Soul plane The buddhic plane is described as a realm of pure consciousness. According to Theosophy the buddhic plane exists to develop buddhic consciousness which means to become unselfish and solve