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Mandala
is a concentric diagram having spiritual and ritual significance in both Buddhism and Hinduism. The term is of Hindu origin and appears in the Rig Veda as the name of the sections of the work, but is also used in other Indian religions, particularly Buddhism. In the Tibetan branch of Vajrayana Buddhism, mandalas have been developed into
sand painting. They are also a key part of anuttarayoga tantra meditation practices.
The psychoanalyst Carl Jung saw the andala as "a representation of the unconscious self," and believed his paintings of mandalas enabled him to identify emotional disorders and work towards wholeness in personality.
In common use, mandala has become a generic term for any plan, chart or
geometric pattern that represents the cosmos metaphysically
or symbolically, a microcosm of the Universe from the human
perspective.
Source:
Wikipedia,
Mandala.
A golden rectangle
is a rectangle whose side lengths are in the golden ratio,
one-to-phi, that is, approximately 1:1.618. A distinctive
feature of this shape is that when a square section is
removed, the remainder is another golden rectangle, that is,
with the same proportions as the first. Square removal can
be repeated infinitely, which leads to an approximation of
the golden or Fibonacci spiral.
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