INTERPRETATION.
The progress of civilization is symbolized by fire and its adaptation to the uses of mankind.
Prometheus means forethought or Providence; Epimetheus afterthought. To be wise after an event is often to be wise too late. The temptation of Epimetheus came in the form of Pandora (all gifts), and was too fascinating to be resisted.
Diseases and evils can do no harm until they are let loose.