Pound was obliquely referring to his own experience, and his incarceration in an American mental institution for ten years following his arrest for treason in 1945. Giordano Bruno was burned at the stake in Rome on Easter Sunday, in the year 1600, because he insisted on the infinity of the universe. He believed the stars were not on one sphere but outside the sphere of Jupiter , and that they filled all of space. The reason the church objected to this was that it left no space for god. Our father in heaven had no place to go, and that was very threatening to the entire system.
Heresy is essential for creativity, insight, and progress.
Whenever heresy is silenced great suffering and evil ensued.