This is part of a series. You can read the introduction first or view all the posts together.
The Westminster Shorter Catechism poses the question, “What is the chief end of man?” The answer to that question and today’s “why I want to go to heaven” are one and the same.
Our primary and sole purpose now is indeed to glorify God (”whatever you do, do all to the glory of God,” 1 Corinthians 10:31) and rejoice in Him (”rejoice in the Lord always,” Philippians 4:4). And our primary and sole purpose in heaven will continue unchanged. We’ll be a lot better at glorifying Him, yes, but it has always been, and shall always be, that for which we were created.
In an assembly-line world, full of everything from multipurpose 4-in-1 printers to three-sizes-fits-all sweatshirts, I think it can be hard to grasp the concept of a truly single-purposed object. The things we surround ourselves with often do many things satisfactorily, but do few things extremely well. That’s why we have different “levels” of gadgets depending on whether, for instance, the printer is going to be used by a mom in her home or a printing company in the workplace. We also make lots of substitutions. When I don’t have cooking spray, I use canola oil. I use the same kind of flour to put in many different baked goods. When we don’t have good nails to use to hang pictures, we use whatever nails we have. We’re adaptable and flexible, by God’s marvelous design, and so it isn’t a big problem that most of us don’t know how to mill our own flour exclusively for each specific cake, or forge an ideally-shaped nail for each task.
So when we speak of being created for a single purpose, I’m not sure how much immediate meaning that connotes in our minds. One thing engineering can show us–as countless human tragedies have attested–is that when you try to use a part for something other than its intended use, chaos can result. If you apply forces to a metal pin in different directions or strengths than the pin was intended, the pin may twist and strain and eventually break. And so bridges and buildings have come falling down, simply because the builders tried to use parts to do things other than what they were created to do.
And it’s the same way with us. We were custom-tailored, fashioned by God with the greatest care, intended for one chief object: to glorify God. And when we’re acting outside of that original intention, we too get twisted, strained, and breaking. We were designed to glorify God, and we don’t do other things well.
But right now, we’re like metal pins in a bridge that’s collapsing. In a fallen world and in fallen bodies, we are not glorifying God perfectly nor are we enjoying Him completely.
In heaven, we will be in a perfect situation, perfectly fulfilling our intended “use.” If spending eternity glorifying God sounds uneventful now, it’s only because our understanding is incomplete: Scripture is very clear that God is our ultimate joy, and glorifying Him is our greatest occupation. Now we see as through a glass darkly, but in Heaven, nothing will fill us with such excitement as worshipping God! It’s like if we imagine our perfect, most ideal job, with the best benefits: the type of job where we jump out of bed in the morning because we can’t wait to get to work because we love what we do and we know we do it well–and that’s the description of our job in heaven!
And so, today’s reason why I want to go to heaven is because there is nothing better, nothing more enjoyable, nothing more pleasing, and nothing more fulfilling, than doing what I was designed to do! And that’s an idea I can only begin to grasp, but it’s such an amazing and awesome thing that I can’t wait to understand it in full!
This is the last of the ten posts. 
I might extend the series with two or three closely-related posts, also on the subject of heaven, but not specifically “why I want to go.” I’m not one hundred percent decided yet, but I have some thoughts floating around that I’d like to work through.
