We visit teach because we've made covenants with the Lord, and they are fulfilled as we share our hearts and souls. We visit teach to extend charity, which is the "highest, noblest, strongest kind of love." Visiting teaching is all about family. As we show charity to those we serve, we become family by affection. We all belong to the Lord's family, and when we serve sisters—and through them their families—we strengthen the family as designed in the heavens.