Q: Why must The Urantia Book tell us about God definitively if it so strongly believes in finding God through personal religious experience? What is its purpose in doing this?
A: Your question brought this passage to my mind:
In other words, like the religion of Jesus, we can know ABOUT God through the reading of The Urantia Book, but having the experience OF God can only be enjoyed through seeking that God who is so eloquently described so that we have personal communion with him. In this way, we can establish a beneficial relationship with him in our inner selves.
195:9.8 The world needs more firsthand religion...Descriptive words of things beautiful cannot thrill like the sight thereof, neither can creedal words inspire men’s souls like the experience of knowing the presence of God. But expectant faith will ever keep the hope-door of man’s soul open for the entrance of the eternal spiritual realities of the divine values of the worlds beyond.
The descriptive narrative of the realities of God in The Urantia Book was, for me, the impetus that drew me into that kind of relationship with him—being told that a true relationship was possible and highly desirable inspired me to prove it to myself. And I think that is why we are given this enlarged view of the Universal Father—as a means of inspiring us to seek such a supernal relationship with him whole-heartedly and with an "expectant faith." The religion OF Jesus is the surest way to achieve that eternal relationship.
The Urantia Book is a book of revelatory information—information about God, his creation, and our place in it...information about Jesus and his mission to proclaim the Fatherhood of God and the brotherhood of man. All information—all facts—while they may be a source of inspiration, are dry and lifeless until until meaning and value are placed upon them by the reader. Only then do these forms become alive, as they are translated through personal experience. They then become a part of who we are.
We can read about God all day long, but until we experience him in our inmost selves, our understanding and our ability to share what we know remains sadly limited. When we activate our faith and seek God, we then can become a force for good in the world as we encourage others to find God as we have done. If we only know about God, we are just parroting dogma.
Thanks so much for this insightful question; I hope this reply has been helpful.