 In the marriage of heaven and hell, Blake articulated his critique of Swedenborg, indeed the very title marriage of heaven and hell, encapsulated his sense that these were not two radically dichotomous and distinct locations. Swedenborg's problem, he noted, was that he'd conversed only with angels, and not with the devils who hated religion. He'd had the wrong informants. You want to know what hell it's like, you got to talk to a devil, I mean it's perfectly obvious. What Swedenborg had failed to see, Blake noted his annotations to Swedenborg, was that heaven and hell are born together. He articulated a notion of dynamic oppositions. What is basic is a series of countries, attraction and repulsion, reason and energy, love and hate, and these oppositions were necessary for life. What religions called good and evil were secondary terms, derivatives, which sprang from these basic series of countries. They were not primary.