Welcome, and an interesting question. It immediately set me to reflecting about God’s providential interventions into the lives of his children. Regulars here will already be familiar with some of the objective evidence we have his providential M.O. that does not violate any natural laws. (A couple of choice examples are those of Maggie’s testimony and the change in direction of Rich Stearns life.)
It relates to your question because there is no apparent causal relationship between each of the several instances, instances that are discrete and disjoint from each other except for the key individual involved and the objective meaning that is thereby induced. (Another way to characterize the connection between the instances in each set is by the function the respective series of events perform, and the result.)
Now, about their observable causation. 