Jerusalem literally means ‘foundation of peace’. Blake believes it is possible to turn the nation in which he lives, enslaved to war, into something different. ‘Mental Fight’, that is, the striving of imaginative faculties, will enable the new Jerusalem to be built. Blake's task is to reveal to his readers a higher truth, that the new Jerusalem is within reach of all, not as idea but as reality. Blake preached a form of pacifistic enlightenment by which England might be seen as a haven for those who love peace and beauty, its claims as a source of imaginative strength exalted above those of ancient Greece and Rome. ‘Jerusalem’ champions not the mean, exclusionary, ruddy-faced nationalism of those who would have it serve their self-befouling cause, but the inclusivity of visionary power on home ground, accessible to ‘all the Lord's people’, English or not.