The Human Abstract Pity would be no more, If we did not make somebody Poor: And Mercy no more could be, If all were as happy as we: And mutual fear brings peace: Till the selfish loves increase. Then Cruelty knits a snare, And spreads his baits with care. He sits down with holy fears, And waters the ground with tears: Then Humility takes its root Underneath his foot. Soon spreads the dismal shade Of Mystery over his head; And the Catterpiller and Fly, Feed on the Mystery. And it bears the fruit of Deceit, Ruddy and sweet to eat: And the Raven his nest has made In its thickest shade. The Gods of the earth and sea, Sought thro' Nature to find this Tree But their search was all in vain; There grows one in the Human Brain by William Blake
Why frightening? Well Blake often uses the term Mystery to describe, in his view, an oppressive system that enslaves people by abstracting or supernaturalising real natural and cultural forces in order to make slaves of them … “And at length they pronounced that Gods had ordered such Things. Thus men forgot that all deities reside in the human breast“.