The First Vision of Joseph Smith
The first vision that Joseph Smith had. Joseph Smith saw God the Father and his son Jesus Christ. The Church of Jesus Christ of Latter-day Saints declares that God the Father and Jesus Christ appeared to Joesph Smith after solemn prayer one day. This was the start of the restoration of Christ's church on earth.
Read this sermon on Joseph Smith:
http://lds.org/general-conference/2009/10/joseph-smith-prophet-of-the-restoration