Theme influences choices for every element in the story: plot development, characterization, and setting.
Here’s the shell of a plot: your father was laid off; a difficult time followed for the family; your father received additional training and obtained a different job.
Your treatment of this plot will vary according to your theme.
Let’s suppose the following is your theme: “events whose consequences we can’t understand happen gratuitously to us in our lives, but we can always make the best of things.” In the elaboration of this particular theme (message), you will find it natural to set your father’s being laid off not only with his reaction at the time but also with its consequences. [Free Membership required to read more. See below. ]