For Blake, perfected art is an external derivative of man’s spontaneous poetic genius.  The poetic genius is simple yet powerful and a spirit of prophecy.  WIth Blake’s “All Religions are One” expressing the sole ability of the poetic genius to enlighten man, no other ornament/use of logic other than whats founded from the poetic genius should be used to create art or for that matter any other product of life.  This is the Blakean ideal for art and is supported by Sir Joshua Reynolds Discourses on Art.  Reynolds points out that the artist must form a true and central idea of beauty and in doing so “gives his works a correct and perfect design” (Discourses On Art, Pg 49).  The artist, to reach works of genius, must also inform himself with the unadulterated habits of nature; this permits the artists’ works to follow the “flow” of nature providing the work with a pure and consistently repeatable simplicity.  The manifestation of poetic genius is the sure fire way to experience the heaven that all perfect art derives from and in doing so, the artist can more easily witness the habits of nature and what makes art beautiful/the central form that is beautiful.  Reynolds speaks of the artist reaching a heaven then coming back to down to reality and building art based on that heaven.  That heaven is Blake’s poetic genius and through this heaven, perfect art is made because it is both in accordance with the laws of nature as well as following the possible perfect forms in art which man creates.