This is important, because causation is what creates the appearance of meaning. “The queen died, and then the king died” (E. M. Forster’s famous formulation) describes two unrelated events occurring in sequence. It doesn’t mean anything. “The queen died, and the king died of grief ” puts those events into relation; we understand that one caused the other. The sequence, now infused with causality, means: “That king really loved his queen.”