Answer:
Kumalo and Jarvis use weather metaphors in reaction to their sons deaths.
The connection between the two images is that they are both talking about unexpected events, things the two men had no idea were coming.
They symbolize the men's acceptance of their respective situations (the fact that his son is a murderer for Kumalo, and the death of his son for Jarvis), even though they caught them off guard.
What the two images reveal about Kumalo and Jarvis characters is that they're resilient through their grief.
For Jarvis, he accepted what happened even though it is a shock to him; Kumalo acceptw it too, though he wonders in a "how could this happen to me" manner.
Step-by-step explanation:
Kumalo says, "There is a man sleeping in the grass. And over him is gathering the greatest storm of all his days. Such lightning and thunder will come there as have never been seen before, bringing death and destruction. People hurry home past him, to places safe from danger. And whether they do not see him there in the grass, or whether they fear to halt even a moment, but they do not wake him, they let him be." He means that he didn't find out about his son's bad habits until it was too late. He was "asleep" and other people knew and didn't inform him about it because it didn't matter to them.
Jarvis says, "Out of a cloudless sky these things come." Bad things can happen unexpectedly out of nowhere.
Both metaphors symbolize the unexpected nature of the news to the two men.