The tree of life vision is probably one of the defining stories in the Book of Mormon. Full of interesting images that keep the attention of children, but also symbolically meaningful. A quick summary:
Lehi dreams that he is wandering through a dark and dreary wilderness. A man in a white robe shows up and commands Lehi to follow him. He obeys, and is led to another dark, horrible place. He travels for hours in this darkness, until he prays that God will have mercy on him, and upon so doing enters a field. He sees a tree and knows that the fruit of the the tree is the source of happiness. He eats the fruit and is filled with joy. He immediately thinks of his family and desires that they too eat this fruit and enjoy this same happiness. Sam, Sariah, and Nephi follow his directions and also partake of the fruit, but Laman and Lemuel do not. There's an iron rod leading to the tree, and he sees people holding onto it in order to find their way to the tree through a mist of darkness that makes it impossible to see. Nearby, there is a big building where people are dressed up in ostentatious clothing. They mock the people who have partaken of the fruit, and because of that some people are embarrassed enough to let go of the iron rod and get lost. However, a great deal of people use the iron rod to guide themselves to the tree and partake of the marvelous fruit.
There is enough in this little allegory to write books about. But here are some of my humble insights:
1. Initially, Lehi knows he is being guided, because he has an actual, physical guide. Then the guide leaves for no apparent reason, and Lehi wanders for a very long time. However, that doesn't mean he is lost, or abandoned. Heavenly Father doesn't always give us the assurance we want that we are being guided, but that doesn't necessarily mean we are doing something wrong, either. He might just be testing our faith.
2. The guide didn't lead him to the field right away. He led him to a dark and dreary waste, and then Lehi got out of there on his own. Sometimes, God's will is for us to be in places that are frightening and far from ideal. Being unhappy or sad or discouraged for a time doesn't mean we took a wrong turn, as it were. It might just be a sad time in our lives.
3. Lehi didn't receive comfort and arrive at his destination until he prayed.
4. The first thing that Lehi thinks after he eats the fruit and experiences that great joy is he desires for his family to feel that same joy. We used this story in Hungary when we met with members to encourage them to share the gospel with their friends and family. If you feel joy because of the things you have learned, why not share it?
5. One assumes that the fruit resembles true conversion, not just baptism or being taught the gospel, because Laman and Lemuel were most likely baptized and taught the gospel as children. But they failed to accept it and find joy in it.
6. The people who fall away from the truth because of the mockery of others go "crawling towards" the great and spacious building. But since the building was high above the ground, they never reached it. They were just lost forever. Giving in to people who mock you does not mean they will let you join their ranks. You will just end up bereft of what you had, lost, and all alone.
Nephi says there was more: that what he wrote was just a summary of the vision (making my puny paragraph a summary of a summary). This is one of those stories I'm excited to see the video of when I die.