What if some of them don’t make it to Heaven? Will I know? If I do, then it won’t be very joyous to know that, say, my cousin is in Hell, unless something about the nature of Heaven makes me not care, in which case I’d question how wonderful it is.
Put it this way - you may know that your cousin is in Hell, you’ll also know exactly how he or she came to be there, and why he or she is there.
And you’ll also see, knowing God as you are known by Him, the utter justness, rightness and fittingness of your cousin being where he or she is and the utter impossibility of anyone who rejects God being in heaven, or being truly happy even if they were.
Would you be happy spending eternity with someone whose company you find so intolerable that you’ve rejected them? Neither, I should think, would those whose rejection of God and what He is and stands for place them in Hell, be happy even were they to enter Heaven.
Do I get to see my grandmother again? If yes, doesn’t that mean I do other things than contemplate God? If no, than what comfort is the afterlife?
Being in God’s presence doesn’t mean that you literally notice nothing else, or that you need notice nothing else. Being perfect as God is, I should think we’ll notice a good deal as He does, we’ll just see it through His eyes rather than our own.
So of course you’ll see your grandmother again, assuming she’s there with you - but you’ll love her with God’s infinite and perfect love, rather than your own inferior earthly brand.
This seems like a stream of consciousness, but saying that we do nothing in Heaven but contemplate God raises these questions. What if the Beatific Vision includes earthly things, but God can be perceived in them? In others words, instead of playing football, we play heavenly football, which we were only able to gain glimpses of shadows on Earth. Sort of like True Narnia and True England, which CS Lewis wrote about.
As much as I love CS Lewis, he has something to answer for in writing that. Marriage will be done away with, for example, because marriage is a pale shadow of the far more intimate communion we will all experience with Him, and with our fellow citizens of heaven through Him.
So will football be done away with, replaced by something as yet unknown, probably, because it’s not an end or a good in itself, like marriage isn’t an end or a good in itself. Both are good only in so far as they reflect God, His love for us and the glories that await us in Heaven.
The aim in eternity won’t be ‘perfect football’, or ‘true football’, but rather simple and true perfection full stop. Football never will be and never can possibly be part of this ultimate perfection, just as marriage never can possibly be more perfect or true than the communion I’ve described above. Both are very subsidiary and inferior goods at best.