>>How do we bring this down to the day to day living in golus? <<
1. Try to spin difficulties and suffering into kaparas
2. View that any little thing can be suffering and as such a kapara (pulling out the wrong coin from your pocket, turning on cold water and getting a little spritz from the hot water from the person before you.
3. This and the rest of the tochacha falls into the lesson that we must be Amol B’Torah. And failure to do so can bring maximum suffering with minimal reward for the suffering endured.
4. >>but what’s the l’maasah here<< Despite what I have said above, who needs one? This is what the passuk says. There was an obvious question which got answered. Does there need to be a l’maasah here on top of the word of Hashem?
Maybe that is the lesson here. We need to focus on the entire Torah as a whole. Kodshim is not less important because we don’t have a “l’maasah” at this time.