‘And, who says we’ll have eyeballs in heaven anyway???’
the writers of the new testament do.
but, this depends on what you mean by ‘heaven’. we call the sky ‘heaven’, and the place of God’s presence used to be referred to as ‘the third heaven’, after the sky, and the cosmos.
even if you mean ‘the afterlife’, the book of revelation makes it clear that we who die now will go to a ‘holding place’, and afterwards be judged, and then go to reward (which it says is a new heaven, and a new earth), or punishment - the lake of fire. so does your friend mean ‘hades’ or ‘abraham’s bosom’, which will be emptied at judgment day, or does he mean our final destination, reward/punishment?
if he means our final resting place (i mean resting like a plane that lands, not like sleeping), then revelation says that we won’t need a light, because He will be our light (see my sig line). the writers of ezekiel, daniel, isaiah, and revelation talk of seeing God on His throne, and of a Lamb. the Spirit of God is often represented (in these prophecies) by other things, like eyes or wheels within wheels.
i think that the question itself misunderstands what heaven means. by this, i mean that when i was a child, i loved my toys. i might, being a child, ask my parents if i could keep my teddy bear and play with him for the rest of my life. the question itself, you see, is skewed. i didn’t understand that one day i wouldn’t WANT to play with teddy anymore.
i think many of our questions about heaven are skewed like this. we don’t know what to ASK, let alone what the answers mean, because we can’t comprehend what it will be like. stories and images and metaphors are all our minds can receive when we talk about heaven.
so you see, it’s not a simple question, or answer.
so you see, there is not a simple answer. even the word ‘heaven’ has many meanings. alot of people try to simplify God, or heaven, or life itself, into a manageable and understandable model. we do this because, among other reasons, the unknown scares us. it’s understandable. but we have to realize, and remind ourselves, that life is more complex than any model, and heaven more complex than this life, and God the most complex of all.
He is good. but He is not a tame Lion.