Joseph Smith was a poor, hardly educated farm boy from New York who was trying to find out which church he should join. In 1820, when he was 14, he went into a grove of trees on his family's farm so he could have some privacy, and there he prayed out loud for the first time by himself. He wanted to know which church he should join because there was a lot of religious upheaval where he lived - some joining this church, some joining that church, and the leaders of the different sects were preaching different things because they were interpreting verses from the Bible differently.
When Joseph prayed, Heavenly Father and his son, Jesus Christ, appeared to him. They told him not to join any of the sects, for they were all wrong, meaning that none of them was Their true church. They also talked to Joseph about other things, but Joseph didn't record what They said.
This experience, known as the First Vision, is extremely important to members of the Church of Jesus Christ of Latter-day Saints, and to the world. It teaches us that Heavenly Father and Jesus and two physically separate beings, though they are one and united in basically every other way. They even look alike. It also means that Joseph was about to become an instrument in God's hands to restore God's true church, what is now the Church of Jesus Christ of Latter-day Saints, to the earth.
Joseph also translated the Book of Mormon from a set of gold plates that was given to him by an angel of the Lord. It is an ancient record of the inhabitants of the Americas from the time of the Tower of Babel down to the destruction of the Nephites.
Joseph Smith suffered lots of persecution. If you were Satan, and God was trying to restore His church, wouldn't you want to do all you could to stop it? So, Joseph Smith and fellow church members suffered all kinds of attacks, violence, and injustice. They were forced by this persecution from Ohio to Missouri to Illinois, and then to Utah where there remains a large Mormon population today. Joseph didn't make it to Utah, though, for he was killed by a mob at Carthage, Illinois. In spite of its rocky start, the Church continued to grow and is today a worldwide church.
Mormons don't worship Joseph Smith, but we revere him as a great man who had to go through hard things to serve God and the rest of us. It was a tough job, restoring the Church and translating the Book of Mormon and taking care of the affairs of the new organization. It shouldn't be surprising that we Mormons love Joseph Smith as much as we do.
