Blake believed in the primacy of the imagination, and this section of the exhibition reviews the various characters in Blake's personal mythology and their meaning in his imaginary world.

In Jerusalem, his greatest prophetic book, Blake famously wrote: 'I must create a system, or be enslav'd by another man's. I will not reason & compare: my business is to create'. So while other poets might be content to use characters from the Bible, or from Greek and Roman myth, Blake created his own mythology populated by a host of beings that he himself had either invented, or re-interpreted.