Facilis descensus Averno:Noctes atque dies patet atri ianua Ditis;Sed revocare gradium superasque evadere ad auras,Hoc opus, hic labor est.(The gates of Hell are open night and day;Smooth the descent, and easy is the way:But to return, and view the cheerful skies,In this task and mighty labor lies.)
The seeds of life - fiery is their force, divine their birth, but they are weighed down by the bodies' ills or dulled by limbs and flesh that's born for death. That is the source of all men's fears and longings, joys and sorrows, nor can they see the heaven's light, shut up in the body's tomb, a prison dark and deep.