["...I have spoken plainly..." v 40] what we need to do to be happy in this life and return to live with our Father in Heaven in the life to come.
"And behold, I tell ye these things that ye may learn wisdom; that ye may learn that when ye are in the service of your fellow beings ye are only in the service of your God." -v 17
"O how you ought to thank your heavenly King! I say unto you, my brethren, that if you should render all the thanks and praise which your whole soul has power to possess, to that God who has created you, and has kept and preserved you, and has caused that ye should rejoice, and has granted that ye should live in peace one with another--I say unto you that if ye should serve him who has created you from the beginning, and is preserving you from day to day, by lending you breath, that ye may live and move and do according to your own will, and even supporting you from one moment to another--I say, if ye should serve him with all your whole souls yet ye would be unprofitable servants. And behold, all that he requires of you is to keep his commandments; and he has promised you that if ye would keep his commandments ye should prosper in the land; and he never doth vary from that which he hath said; therefore, if ye do keep his commandment he doth bless you and prosper you." v. 19-22
"...ye are eternally indebted to your heavenly Father, to render to him all that you have and are;..." v 34
"...if ye should transgress and go contrary to that which has been spoken, that ye do withdraw yourselves from the Spirit of the Lord,..." v 36
"And moreover, I would desire that ye should consider on the blessed and happy state of those that keep the commandments of God. For behold, they are blessed in all things, both temporal and spiritual; and if they hold out faithful to the end they are received into heaven that thereby they may dwell with God in a state of neverending happiness. O remember, remember that these things are true; for the Lord God hath spoken it." v 41