1) Remembering in the way God intends, as described in scripture, involves active engagement rather than just passive recollection. It means listening, seeing, doing, obeying, and avoiding sin.
2) We should remember the history of the Church, as keeping historical records helps us recall how God has revealed truths. Joseph Smith's First Vision is a powerful example of Church history that stirs commitment.
3) President Hinckley emphasizes the past to help us live righteously now and see God's hand in our history and future. Remembering enables a connection to our spiritual heritage and motivation to greater service.