[Salvation]

You are so right. Here are the word of Jesus himself.

"Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you"  (Jn 6:53).  

[jodyel]

And as we have said here, salvation, this is not to be taken literally. This is symbolic and refers to the Spirit.

However, those who do not have the Spirit will also not have the understanding of the verse in Scripture.

See my previous post regarding the Lord’s Supper.

[Elsie]

Here are the word of Jesus himself; said just a few verses earlier:

John 6:28-29

Then they asked him, “What must we do to do the works God requires?”
Jesus answered, “The work of God is this: to believe in the one he has sent.”