PI is the 16th letter of the Greek alphabet.
In mathematics, PI is a transcendental number, approximately 3.14159, represented by the symbol π, that expresses the ratio of the circumference to the diameter of a circle and appears as a constant in many mathematical expressions.
The exact value of π has an infinite decimal expansion: its decimal expansion never ends and does not repeat.
By entering PI you can tap an infinite well, a source that causes creative combustion of ideas, inventions and innovation, that erupt from within you — like pumice stone from a volcano — a source that can keep you going 22/7… after all, we do need some time to rest.