Nephi’s vision of his descendants...
(compare 1 Nephi, chapter 12)
Then the angel said, "Look and see your descendants, and also your brothers’ descendants."
I looked and saw multitudes of people upon the promised land as numerous as the sand upon the seashore.
I saw these multitudes gather to battle one another.
I saw many wars, and many of my people were killed by the sword. I saw many generations of people come and go, all involved in these wars.
I saw so many cities that I could not count them all.
Then I saw a great mist of darkness over the face of the promised land. After awhile, the land became violent with lightning, thunder, earthquakes and all kinds of loud noises.
I saw large mountains fall into valleys, and plains were broken up. I saw many cities sink into the ocean. I saw many cities burn, and many collapse from earthquakes.