At one point or another in life, everyone asks, What am I here for? Not the larger question of universal purpose (What is human or world history for?), but rather the specific question of individual human callings. In other words, what makes us as humans made in the image of God not interchangeable with one another? Why is one a writer and the other a banker? Why is one a farmer and the other a soldier? Are such decisions made as a result of happenstance or merely environmental conditions, or do they speak to something deeper occurring in the heart of the person?