। ॥ ६८६ ॥
In plain words
Therefore, dear seeker, an effect is never separate from its cause. In the same way, all this material creation is nothing more than the elemental reality, and is never separate from it.
Close to the Sanskrit
Therefore indeed an effect is never separate from its cause, since it is so, O seeker; whatever material all this is, similarly that is mere elements, not separate even from that.