"No One understands the true nature of God and no mortal’s understanding of God is exactly true. We know only our limited perspectives gained from the limited information we have on the limited ways He has revealed Himself to us. We don’t even really know each other and yet each religion thinks they 'know' or have the correct understanding of God? God calls prophets and has them organize religions to teach people about the nature of eternal beings, universal consciousness and reality; and to teach them about themselves. But how do you teach someone who you are with mere words or even repeated short visits? Being married dozens of years, one still doesn’t really exactly 'know' who their spouse or family members are. A person can’t explain themselves in words, pictures or even face-to-face conversation. Even living with someone 24/7 we can spend our whole lives really getting to know them; but because most people are so complex you can never properly depict them on canvas, or paper or stone. The problem with religions is that they are like a young infatuated lover who has just got a girlfriend and thinks he 'knows' her and is in love with her. Well it doesn’t take long before the magic wears off and the person can see in retrospect that the person isn’t quite what they thought they were. Hopefully they realize that the person is better than they thought, but typically since 'infatuation' is really love of self, they find that they were projecting their own hopes and 'desires of self' onto their lover. There is good reason why God and Christ compare themselves to a husband and the Church or us to their young bride. God is trying to teach us something about our own psychology.

"God wanted Israel to come up to the mount with Moses and personally worship the 'true' God (D&C 84:23–27); but they couldn’t comprehend Him, so they had Aaron build them an idol that they could worship. (They needed something beautiful, concrete, visible and agreeing with their notions of god!) Since it was obvious that’s all Israel couldn’t understand that 'God' (just like everyone) is to be experienced with your heart not seen with your eyes, as a punishment/reward God appointed Aaron and His posterity as priest to teach people the nature of God. The problem is that Aaron didn’t know God either, so God helped Israel form a religion that was actually predominately a projection of their own ego. That was all they were capable of receiving at that point in their progression."

http://mormonuniversalism.com/1677/the-only-true-church/