Second Coming
The Second Coming (sometimes called the Second Advent or the Parousia) is a Christian and Islamic belief regarding the future (or past) return of Jesus Christ after his ascension to heaven about two thousand years ago. The idea is based on messianic prophecies and is part of most Christian eschatologies.
Millerism
Despite the urging of his supporters, Miller never personally set an exact date for the expected Second Advent. However, in response to their urgings he did narrow the time-period to sometime in the year 1843, stating: "My principles in brief, are, that Jesus Christ will come again to this earth, cleanse, purify, and take possession of the same, with all the saints, sometime between March 21, 1843 and March 21, 1844" March 21, 1844 passed without incident, and the majority of Millerites maintained their faith. On March 25, Miller wrote to Himes, "I am still looking for the Dear Savior…. The time, as I have calculated it, is now filled up; and I expect every moment to see the Savior descend from heaven. I have now nothing to look for but this glorious hope."