। ॥ ३१३ ॥
In plain words
Watch closely: when the outward effect grows, the seed behind it grows too; when the effect dies away, the seed dies with it. So the way forward is simple - check the effect, and starve the seed at its root.
Close to the Sanskrit
From the growth of the effect, the growth of the seed is observed; from the destruction of the effect, the destruction of the seed [follows]. Therefore, one should check the effect.