I wonder if we make it harder than it really is to discover what our purpose is as humans. Ask anyone and you'll get a different answer.
Why might we make it harder than it really is? Look at nature. What aspects of nature do you think wonders about its purpose? Doesn't it all understand what it's here to do?
Even though we all have different personalities and perhaps we have different goals and tasks would it be possible that all humans have a common purpose just as plants work to provide oxygen, even though some produce fruit?
If so, what is that common purpose? Whether you are an atheist or religious, where can you come together on human purpose? Could the journey to discovering truth start there and is it wrong to start with asking "why?"