The weekend provides the opportunity to rest, reflect, and re-engage.
The writer of this psalm (David) wrote it while on the run from his son Absalom (a rogue child if ever there was one). See 2 Samuel 15 for the background.
In critical times, we are reminded of our fragility. We awake from our slumber only because God awakens us. We live, only because God sustains us.
However, we need also to remember that God sustains us when life is sweet and everyone is at peace with us. In every circumstance, give thanks to God for his grace. – Luther