Those who believe Christ have passed into eternal life, are living it:
Luke 10:17 NET Then the seventy-two returned with joy, saying, “Lord, even the demons submit to us in your name!”
Their names are written in the book of life
Luke 10:20 NET Nevertheless, do not rejoice that the spirits submit to you, but rejoice that your names stand written in heaven.”
They are enlightened about the process:
John 12:24 NET I tell you the solemn truth, unless a kernel of wheat falls into the ground and dies, it remains by itself alone. But if it dies, it produces much grain.
Some find new teachings hard to accept:
John 6:53-60 NET Jesus said to them, “I tell you the solemn truth, unless you eat the flesh of the Son of Man and drink his blood, you have no life in yourselves. The one who eats my flesh and drinks my blood has eternal life, and I will raise him up on the last day. For my flesh is true food, and my blood is true drink. The one who eats my flesh and drinks my blood resides in me, and I in him. Just as the living Father sent me, and I live because of the Father, so the one who consumes me will live because of me. This is the bread that came down from heaven; it is not like the bread your ancestors ate, but then later died. The one who eats this bread will live forever.”
Jesus said these things while he was teaching in the synagogue in Capernaum. Then many of his disciples, when they heard these things, said, “This is a difficult saying! Who can understand it?”
He is referring to the teaching that one needs to abandon the idols of Egypt/the world, which are basically vending machines (they served men!), and not replace them with newer vending machines, but with a God who taught servanthood.
Instead of persevering and finding out what it involved, some quit:
John 6:66 NET After this many of his disciples quit following him and did not accompany him any longer.
Belief is what gets your name into the book of life. Unbelief gets it blotted out:
Revelation 3:3-5 NET Therefore, remember what you received and heard, and obey it, and repent. If you do not wake up, I will come like a thief, and you will never know at what hour I will come against you. But you have a few individuals in Sardis who have not stained their clothes, and they will walk with me dressed in white, because they are worthy. The one who conquers will be dressed like them in white clothing, and I will never erase his name from the book of life, but will declare his name before my Father and before his angels.
The thief on the cross next to Jesus believed. That is what counts, being conquerors at the point in life you are in. Not the progress made, nor how mature you have grown (and cynical).