I suspect this question subconsciously bothers most of us more than we like to admit. I can remember having something of a crisis of faith as a child: I thought I didn't want to go to Heaven since the popular pictures of it seemed pretty boring to me.
Freud, who occasionally comes up with nuggets of wisdom sandwiched between mountains of nonsense, says that everyone needs two things to make life worth living: love and work. The two are really one, for love is a work and work is a love. Love is a work, for it is something you do, not something you just feel or fall into. And work must be a love, for if not, it is threatening and boring. What love-work will we do in Heaven, then?
We will complete the very love-works we are meant to do on Earth. There are only six things that never get boring on Earth, six things that never come to an end: knowing and loving yourself, your neighbor, and God. Since persons are subjects and not objects, they are not exhaustible; they are like magic cows that give fresh milk forever.
The two great commandments that are our job description for life, in both this world and the next, express this plan: We must love God wholly and we must love our neighbor as ourself. And in order to love we must know, get to know, as endlessly as we love endlessly. This never gets boring, even on Earth: getting to know and love more and more someone we already know and love. It is our clue and our preparation for our eternal destiny of infinite fascination.
This was published in the Christianity Today book, Tough Questions Christians Ask. Peter Kreeft is a professor of philosophy at Boston College and the author of more than 40 books