It is a metaphor, very common use in rabbinic teaching and Jesus did it often.
**13 Jesus answered and said to her, “Everyone who drinks of this water will thirst again; **14 but whoever drinks of the water that I will give him shall never thirst; but the water that I will give him will become in him a well of water springing up to eternal life.”
Same use of language and exact same outcome.
"Truly, truly, I say to you, he who believes has eternal life. 48 "I am the bread of life. 49 "Your fathers ate the manna in the wilderness, and they died. 50 "This is the bread which comes down out of heaven, so that one may eat of it and not die. 51 “I am the living bread that came down out of heaven; if anyone eats of this bread, he will live forever; and the bread also which I will give for the life of the world is My flesh.”
Same metaphoric language and same results. Thank God Paul cleared up the Lord’s Supper for the discerning.
58 "This is the bread which came down out of heaven; not as the fathers ate and died; he who eats this bread will live forever."
Same metaphor as with the woman at Jacob’s well; only the well water like the manna in the wilderness filled the stomach; whereas those who believe and abide in Him and Him in them will have eternal life. If you only were able to be granted by God understanding.
Here is a longer one:
***2 "But he who enters by the door is a shepherd of the sheep. 3 "To him the doorkeeper opens, and the sheep hear his voice, and he calls his own sheep by name and leads them out. 4 "When he puts forth all his own, he goes ahead of them, and the sheep follow him because they know his voice. 5 “A stranger they simply will not follow, but will flee from him, because they do not know the voice of strangers.” 6 This figure of speech Jesus spoke to them, but they did not understand what those things were which He had been saying to them. {Jesus is describing many of you}***7 So Jesus said to them again, "Truly, truly, I say to you, I am the door of the sheep. 8 "All who came before Me are thieves and robbers, but the sheep did not hear them. 9 "I am the door; if anyone enters through Me, he will be saved, and will go in and out and find pasture.
In case you still don’t get it; He repeats it another way for the dull of hearing:
1
4 "I am the good shepherd, and I know My own and My own know Me, 15 even as the Father knows Me and I know the Father; and I lay down My life for the sheep. 16 "I have other sheep, which are not of this fold; I must bring them also, and they will hear My voice; and they will become one flock {with} one shepherd.{So much for Peter or the concept of the Pope} 17 "For this reason the Father loves Me, because I lay down My life so that I may take it again. 18 “No one has taken it away from Me, but I lay it down on My own initiative. I have authority to lay it down, and I have authority to take it up again. This commandment I received from My Father.”
Still in the dark…pun intended
12 Then Jesus again spoke to them, saying, "I am the Light of the world; he who follows Me will not walk in the darkness, but will have the Light of life."
How about another one?
5 "I am the vine, you are the branches; he who abides in Me and I in him, he bears much fruit, for apart from Me you can do nothing.
25 Jesus said to her, "I am the resurrection and the life; he who believes in Me will live even if he dies, 26 and everyone who lives and believes in Me will never die. Do you believe this?" – This one is not as metaphoric, but combines both.
**If you haven’t noticed all of these or in the Book of John; so the entire book is chuck-full of this metaphoric language in describing Jesus a the Way, the Truth and the Life…amen.**P.S. Cannibalism is forbidden in Scripture and Jesus does not contradict Himself; only men do,