Beauty, symmetry and heart

Abstract

In this article I present a simple definition of mathematics, from a non-specialist, based on beauty and aesthetics. It is certainly not new, but rewritten and based on the platonic concept of idea, that has Pythagorean origins. The beauty is exemplified in terms of symmetry, more precisely by means of ambigrams, the Rorschach inkblot test and poetry. However, even considering all the elements of poetry, one cannot explain why some songs we like a lot and why it is possible to know all the words by heart. Part of the answer was quoted by Pascal in one of his Pensées.