Hi John-
The purpose of life? Hmmm, lets see if I could be of some help.
Starting point of my analysis is the belief that there's a creator of the universe, meaning God. So the God created everything BUT he just didn't simply created, he created everything with perfection and without any flaws.
THIS UNIVERSAL SYSTEM IS THE MODEL OF PERFECTION.
Look at the sky, hanging above us without any support, the sun and the moon revolving in their fixed orbits and never malfunctioned, the stars glorifying the skies in the nights. This universe is beautifully architected and created. The God hasn't created this universe in a split of a second (although he is capable of), but he did it through evolution and in stages. According to Quran, he took seven days and six nights (one day is equal to app. 1000 years based on our calender), so the perfection is obvious. So ... there's a creator who love perfection. I think everybody agreed.
Then, look at us. What is the source of our creation? A drop of water i.e. semen. In the womb, a drop of water is transformed into a living human being through various stages. We came into being from nowhere. Then after birth, we go through different phases in our lives. Infant, child, teenage, adult, old and then the end of the story. Again a very well thought process of reproduction and life cycle.
Being a human alone is not enough and God knew that so he gave knowledge also ... very limited but enough for us to progress, think and apply.
So the human being started thinking about everything why, why, why, how, how, how?
Why the fire is created? Why the air is created? Why the water is created? and so forth.
While drinking a glass of water, how many of us has thought WHY THERE ARE TWO KINDS OF WATER IN THE WORLD? WHAT IF THERE WOULD'VE BEEN ONLY SEA WATER?
Then I look at the animals. Cows, horses, goats,... Why they're in control of human being?
Look how important the rain is for our lives?
And there are infinite examples...
So we know that we're the most super creature of God and he must love us thats why he has given us EVERYTHING that we require.
So everything has a purpose... fire, water, air, rain, animals,... but there are alots of things that we do not use so for us, they're useless but remember, we have been given a very very limited knowledge.
So for this gracious and merciful creator who love perfection, is it possible that he would create something with no purpose and that something is not but his most beautiful creature ... human being?
John- If this small analysis makes some sense to you and if you want to pursue it, I'll be more than happy to participate.
Regards.