According to the LDS Church, the purpose of FHE is to help families strengthen bonds of love with each other as well as provide an atmosphere where parents can teach their children principles of the gospel.
[2] The responsibilities for each are often rotated among family members, so that even the youngest may be assisted in presenting a short lesson or devotional on a given topic.
The letter described the event as being a time set apart for "prayer ... hymns ... family topics ... and specific instruction on the principles of the gospel.
"[3] In 1970, church president Joseph Fielding Smith (son of Joseph F. Smith, who was president when the 1915 letter was issued) designated Monday night as the preferred time for Family Home Evening, asking local church units not to hold other church-related meetings or activities on that night.
Other interruptions on Monday nights should be avoided.A more recent version states:[8] Home evening is flexible according to members’ circumstances.