Doctrine & Covenants 105-106
It takes work ("gird up your loins") to become the "children of light" (D&C 106:5). And in section 105 we're giving some encouragement to help us do that.
10 - be prepared, have experience, know duty
11 - attend the temple
18 - hearken to God's words
23 - be faithful, prayerful and humble
24 - gather together
31 - become sanctified
37 - "inasmuch as they follow the counsel which they receive, they shall have power after many days to accomplish all things"
So, don't be afraid to roll up your sleeves and get to work. The blessings that follow righteousness are incredible.