Joseph Camp­bell: ​“The air­plane has replaced the bird in the imag­i­na­tion as the sym­bol of the release of spir­it from the bonds of earth.” Hence, Invis­i­ble Sea. Part cri­tique, part cel­e­bra­tion of tech­nol­o­gy, these poems explore the sym­bol­ic and myth­i­cal asso­ci­a­tions of the his­tor­i­cal moment when human beings took flight and, in a sense, became God­like. The open­ing sec­tion is in the voice of Wilbur Wright as he unlocks the mys­ter­ies of human flight and, con­se­quent­ly, pays a heavy price. The next sec­tion exam­ines the sto­ries of oth­er ear­ly aero­nauts, both leg­endary and real, from Daedalus to John Glenn, orbit­ing the earth. The title poem of the col­lec­tion, a ser­i­al poem, scans the major dis­cov­er­ies of aero­nau­tics, begin­ning with Da Vinci”s study of flu­ids and end­ing with trans-son­ic flight.