Dude, ive been lucid dreaming for the past 8 years... and it takes discipline, concentration and practice to become fully conscious in your dream state without waking yourself up. There is nothing divine about lucid dreams unless you make them that way with your mind. It takes a full commitment to a dream journal, and outside exercises every day to help increase your ability to become lucid, asking yourself if you are in a dream 20 times a day to increase the amount of times you ask yourself that question while you are in your dream. Also trying to move objects with your mind during the day, increasing the chances you will try it in your dreams, which will result in the object moving, which will result in you becoming aware you are in a dream, resulting in lucidity... or becoming fully conscious you are in a dream, in which then you will be able to begin practicing concentration techniques to learn how to do things like... my personal favorite, FLYING! teleporting, moving through solid walls, creating energy balls, creating beautiful women in your mind that you can have your way with, creating something out of nothing, traveling to different planets... the list is only limited by our imagination, and our ability to keep our resolve as to not get too excited and wake ourselves up (which fucking SUCKS)
You don't gain any sort of divine or spiritual knowledge from lucid dreaming, but if you try, you can find things out about yourself that you never knew... and you can use those things you find to improve your understanding of yourself, why you do the things you do, why you feel the way you feel, why you think the way you think and so on. All other knowledge attempted to be acquired through dreaming, is in fact, nothing but a dream, nothing but your imagination telling you what you want to hear.
Oh, i just had this sweet dream where i met mace windu, and he gave me his lightsaber, and i was fuckin up some storm troopers like there was no tomorrow! A lot of times ill have dreams where the opportunity arises for me to become lucid, my mind is aware i am in a dream... but the dream is sooooo badass, that i trick myself into thinking im still in a dream so i can play out the dream while being conscious enough to remember it in vivid detail when i wake up. It was really hard to learn how to do that.
The thing ive been working on for years and still havent been able to figure out, but ive heard of people doing it, which gave me the idea... but, 360 vision! Where id be able to see in all directions at once! Proving to be very, very, very difficult.... i always end up with the vision you would imagine an iguana would have...