We can understand Gods word

I realize the reason I can not understand the bible. God has show me that to see him one must purify one self. I give you the story of Nebuchadnezzar. He could not see God until he spent 7 years eating the greens of the field. Then even his wisemen were asking him for the answers. And Daniel became the wisest - why? could it be because he would not defile himself with the kings food for three years. Could God be giving us a picture of how to receive understanding? Wow