Metaphor is using words or phrase that have figurative or symbolic meaning or interpretation.
But the problem with using metaphors, is that the meaning may not be clear, due to the ambiguous nature of using metaphor. Meaning that metaphor may have more than one interpretation.
Myth is a lot more complex.
Unlike metaphor, myth deals with more than just metaphor. Metaphor is just dealing with one or more phrases, while myth is more of traditional story that may have some metaphors, but that's not the purpose of a myth.
I agreed with dgirl1986 that myth is a traditional story and with sojourner as it been collection of traditions or stories, but a story that tried to explain what don't necessarily and fully understand, but what they believe it to be.
I believe that sincerly misunderstood what I was asking about or talking about, when I was asking if the verse John 1:1 should be understood literally or metaphorically (or figuratively) to what he thought I was asking, which is Jesus a mythic or historical figure?
He (sincerly) was make assumption myth = lies, and thought I was questioning Jesus' historical status.
I was only trying to make sense of one or more verses in John 1, not the entire gospel.
I believe that John 1:1 and following verses about Jesus could be interpret in several different ways, so they are more metaphoric than literal.
Where it say logos or the "Word", I would take it as Jesus being a teacher or preacher, using words to spread his message (gospel).
Where John say "In the beginning..." (1:1) and "He was with God in the beginning." (1:2), I understand that most Christians would believe the Genesis' beginning or creation, but I think that it mean the beginning of Jesus's ministry.
And where it say "Light" (1:4-5) and "Life" (1:4), i don't think it was a literal light John was referring to Jesus, but a symbolic light, like light as in "hope" in Jesus' messages of possible in the afterlife in heaven.
In any case, John 1:1-5 is only a tiny fraction of Jesus' story.
I don't think Jesus is literal god or creator. Although some would think so, there are number of occasions where he clearly state that he is separate person from god. If Jesus was god then why would Jesus pray to himself in the garden (after the Last Supper and before his arrest)?