And the remission of sins bringeth meekness, and lowliness of heart; and because of meekness and lowliness of heart cometh the visitation of the Holy Ghost, which Comforter filleth with hope and perfect love, which love endureth by diligence unto prayer, until the end shall come, when all the saints shall dwell with God.
Some important doctrine in this verse.
If we want to dwell with God, here is the equation.
First we must repent. (In the previous verse it says that the firstfruits—or first outcome—of repentance is baptism. But once we’ve taken that initial step, the same process applies over and over again through the sacrament.)
When we repent, we are humble. We are meek and lowly of heart. That’s a blessing of repentance.
When we are humble and meek, the Holy Ghost is our companion.
When we have the Holy Ghost with us, we are filled with love. This is an important promise because it can have two meanings. We are the recipient of love from Heavenly Father and Jesus. We can feel how They feel about us and know our true worth. But we can also be filled with love for others. This helps us navigate our interactions and relationships as the Savior would. Being filled with love is essential to becoming like Christ.
When we have the Holy Ghost we are also filled with hope. Hope is more than faith. It’s using faith to KNOW that the promises can be realized by you. Hope is critical in our world today.
Next, we can keep the love and hope with us if we are “diligent unto prayer.” Prayer is our conduit to God. It is a blessing. It is also how we retain the blessings of repentance.
Doing these things over and over throughout our lives will allow us to dwell with God because they give us access, over and over, to Christ’s Atonement.
These are some of Moroni’s final teachings (in this case, sharing what he learned from his father). That tells me he thinks they are the most important. He wants us to remember that repentance leads to humility, which leads to hope and love, which is kept through prayer. This pattern is how we get to God.