Which line from if by Rudyard Kipling shares a similar theme with this excerpt?

c - And – which is more – you’ll be a Man, my son!

the answer is emerged from.

orpheus descended to hades, the world of the death to rescue eurydice. no mortal had ever done this before him, he survived because he was protected by the gods. the word "underworld" gives us a clue, he emerged from it like a whale emerges form sea for exemple.

the statement flat characters usually only have one trait that is developed in their story lines is true.